diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/models/_models.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/models/_models.py
index a1e6d6a2314a..d7df4f4b1548 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/models/_models.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/models/_models.py
@@ -4854,10 +4854,12 @@ def __init__(self, **kwargs):
 
 
 class VirtualMachineReimageParameters(Model):
-    """Parameters for Reimaging Virtual Machine. Default value for OSDisk : true.
+    """Parameters for Reimaging Virtual Machine. NOTE: Virtual Machine OS disk
+    will always be reimaged.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -5724,7 +5726,8 @@ class VirtualMachineScaleSetVMReimageParameters(VirtualMachineReimageParameters)
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -5740,7 +5743,8 @@ class VirtualMachineScaleSetReimageParameters(VirtualMachineScaleSetVMReimagePar
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     :param instance_ids: The virtual machine scale set instance ids. Omitting
      the virtual machine scale set instance ids will result in the operation
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/models/_models_py3.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/models/_models_py3.py
index 074f997496a5..694e860185ce 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/models/_models_py3.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/models/_models_py3.py
@@ -4854,10 +4854,12 @@ def __init__(self, *, platform_update_domain: int=None, platform_fault_domain: i
 
 
 class VirtualMachineReimageParameters(Model):
-    """Parameters for Reimaging Virtual Machine. Default value for OSDisk : true.
+    """Parameters for Reimaging Virtual Machine. NOTE: Virtual Machine OS disk
+    will always be reimaged.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -5724,7 +5726,8 @@ class VirtualMachineScaleSetVMReimageParameters(VirtualMachineReimageParameters)
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -5740,7 +5743,8 @@ class VirtualMachineScaleSetReimageParameters(VirtualMachineScaleSetVMReimagePar
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     :param instance_ids: The virtual machine scale set instance ids. Omitting
      the virtual machine scale set instance ids will result in the operation
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machine_scale_set_vms_operations.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machine_scale_set_vms_operations.py
index 23122befb8e5..3a64fc9a6b14 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machine_scale_set_vms_operations.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machine_scale_set_vms_operations.py
@@ -103,7 +103,8 @@ def reimage(
         :param instance_id: The instance ID of the virtual machine.
         :type instance_id: str
         :param temp_disk: Specifies whether to reimage temp disk. Default
-         value: false.
+         value: false. Note: This temp disk reimage parameter is only supported
+         for VM/VMSS with Ephemeral OS disk.
         :type temp_disk: bool
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: The poller return type is ClientRawResponse, the
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machine_scale_sets_operations.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machine_scale_sets_operations.py
index fa7c1abf9155..6037dd039d95 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machine_scale_sets_operations.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machine_scale_sets_operations.py
@@ -1557,7 +1557,8 @@ def reimage(
         :param vm_scale_set_name: The name of the VM scale set.
         :type vm_scale_set_name: str
         :param temp_disk: Specifies whether to reimage temp disk. Default
-         value: false.
+         value: false. Note: This temp disk reimage parameter is only supported
+         for VM/VMSS with Ephemeral OS disk.
         :type temp_disk: bool
         :param instance_ids: The virtual machine scale set instance ids.
          Omitting the virtual machine scale set instance ids will result in the
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machines_operations.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machines_operations.py
index 604b54f96984..8c9f22e17663 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machines_operations.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_06_01/operations/_virtual_machines_operations.py
@@ -1437,7 +1437,8 @@ def reimage(
         :param vm_name: The name of the virtual machine.
         :type vm_name: str
         :param temp_disk: Specifies whether to reimage temp disk. Default
-         value: false.
+         value: false. Note: This temp disk reimage parameter is only supported
+         for VM/VMSS with Ephemeral OS disk.
         :type temp_disk: bool
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: The poller return type is ClientRawResponse, the
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/models/_models.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/models/_models.py
index fc817320c012..952ab9f3d4a6 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/models/_models.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/models/_models.py
@@ -3574,7 +3574,8 @@ class VirtualMachineReimageParameters(Model):
     will always be reimaged.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -4448,7 +4449,8 @@ class VirtualMachineScaleSetVMReimageParameters(VirtualMachineReimageParameters)
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -4464,7 +4466,8 @@ class VirtualMachineScaleSetReimageParameters(VirtualMachineScaleSetVMReimagePar
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     :param instance_ids: The virtual machine scale set instance ids. Omitting
      the virtual machine scale set instance ids will result in the operation
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/models/_models_py3.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/models/_models_py3.py
index 29c6e258b64b..b0b1f78e82c7 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/models/_models_py3.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/models/_models_py3.py
@@ -3574,7 +3574,8 @@ class VirtualMachineReimageParameters(Model):
     will always be reimaged.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -4448,7 +4449,8 @@ class VirtualMachineScaleSetVMReimageParameters(VirtualMachineReimageParameters)
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -4464,7 +4466,8 @@ class VirtualMachineScaleSetReimageParameters(VirtualMachineScaleSetVMReimagePar
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     :param instance_ids: The virtual machine scale set instance ids. Omitting
      the virtual machine scale set instance ids will result in the operation
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machine_scale_set_vms_operations.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machine_scale_set_vms_operations.py
index 1f8be3add421..ee9eebf1aaa8 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machine_scale_set_vms_operations.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machine_scale_set_vms_operations.py
@@ -103,7 +103,8 @@ def reimage(
         :param instance_id: The instance ID of the virtual machine.
         :type instance_id: str
         :param temp_disk: Specifies whether to reimage temp disk. Default
-         value: false.
+         value: false. Note: This temp disk reimage parameter is only supported
+         for VM/VMSS with Ephemeral OS disk.
         :type temp_disk: bool
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: The poller return type is ClientRawResponse, the
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machine_scale_sets_operations.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machine_scale_sets_operations.py
index c33792662b3c..7b8fb99c3707 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machine_scale_sets_operations.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machine_scale_sets_operations.py
@@ -1557,7 +1557,8 @@ def reimage(
         :param vm_scale_set_name: The name of the VM scale set.
         :type vm_scale_set_name: str
         :param temp_disk: Specifies whether to reimage temp disk. Default
-         value: false.
+         value: false. Note: This temp disk reimage parameter is only supported
+         for VM/VMSS with Ephemeral OS disk.
         :type temp_disk: bool
         :param instance_ids: The virtual machine scale set instance ids.
          Omitting the virtual machine scale set instance ids will result in the
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machines_operations.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machines_operations.py
index b5659a19cd9f..06cf68b35055 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machines_operations.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2018_10_01/operations/_virtual_machines_operations.py
@@ -1437,7 +1437,8 @@ def reimage(
         :param vm_name: The name of the virtual machine.
         :type vm_name: str
         :param temp_disk: Specifies whether to reimage temp disk. Default
-         value: false.
+         value: false. Note: This temp disk reimage parameter is only supported
+         for VM/VMSS with Ephemeral OS disk.
         :type temp_disk: bool
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: The poller return type is ClientRawResponse, the
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/__init__.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/__init__.py
index d321bc796c26..73b7eeaaba37 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/__init__.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/__init__.py
@@ -362,6 +362,7 @@
     ProtocolTypes,
     ResourceIdentityType,
     MaintenanceOperationResultCodeTypes,
+    HyperVGenerationType,
     UpgradeMode,
     OperatingSystemStateTypes,
     IPVersion,
@@ -573,6 +574,7 @@
     'ProtocolTypes',
     'ResourceIdentityType',
     'MaintenanceOperationResultCodeTypes',
+    'HyperVGenerationType',
     'UpgradeMode',
     'OperatingSystemStateTypes',
     'IPVersion',
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_compute_management_client_enums.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_compute_management_client_enums.py
index af2f9041fbbd..9b493ead5315 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_compute_management_client_enums.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_compute_management_client_enums.py
@@ -278,6 +278,12 @@ class MaintenanceOperationResultCodeTypes(str, Enum):
     maintenance_completed = "MaintenanceCompleted"
 
 
+class HyperVGenerationType(str, Enum):
+
+    v1 = "V1"
+    v2 = "V2"
+
+
 class UpgradeMode(str, Enum):
 
     automatic = "Automatic"
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_models.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_models.py
index 96001f2a846c..1dc23e7939f0 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_models.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_models.py
@@ -153,10 +153,9 @@ class AutomaticOSUpgradePolicy(Model):
     :param enable_automatic_os_upgrade: Indicates whether OS upgrades should
      automatically be applied to scale set instances in a rolling fashion when
      a newer version of the OS image becomes available. Default value is false.
-     If this is set to true for Windows based scale sets, recommendation is to
-     set
+     <br><br> If this is set to true for Windows based scale sets,
      [enableAutomaticUpdates](https://docs.microsoft.com/dotnet/api/microsoft.azure.management.compute.models.windowsconfiguration.enableautomaticupdates?view=azure-dotnet)
-     to false.
+     is automatically set to false and cannot be set to true.
     :type enable_automatic_os_upgrade: bool
     :param disable_automatic_rollback: Whether OS image rollback feature
      should be disabled. Default value is false.
@@ -4292,6 +4291,10 @@ class VirtualMachineInstanceView(Model):
     :param os_version: The version of Operating System running on the virtual
      machine.
     :type os_version: str
+    :param hyper_vgeneration: Specifies the HyperVGeneration Type associated
+     with a resource. Possible values include: 'V1', 'V2'
+    :type hyper_vgeneration: str or
+     ~azure.mgmt.compute.v2019_03_01.models.HyperVGenerationType
     :param rdp_thumb_print: The Remote desktop certificate thumbprint.
     :type rdp_thumb_print: str
     :param vm_agent: The VM Agent running on the virtual machine.
@@ -4323,6 +4326,7 @@ class VirtualMachineInstanceView(Model):
         'computer_name': {'key': 'computerName', 'type': 'str'},
         'os_name': {'key': 'osName', 'type': 'str'},
         'os_version': {'key': 'osVersion', 'type': 'str'},
+        'hyper_vgeneration': {'key': 'hyperVGeneration', 'type': 'str'},
         'rdp_thumb_print': {'key': 'rdpThumbPrint', 'type': 'str'},
         'vm_agent': {'key': 'vmAgent', 'type': 'VirtualMachineAgentInstanceView'},
         'maintenance_redeploy_status': {'key': 'maintenanceRedeployStatus', 'type': 'MaintenanceRedeployStatus'},
@@ -4339,6 +4343,7 @@ def __init__(self, **kwargs):
         self.computer_name = kwargs.get('computer_name', None)
         self.os_name = kwargs.get('os_name', None)
         self.os_version = kwargs.get('os_version', None)
+        self.hyper_vgeneration = kwargs.get('hyper_vgeneration', None)
         self.rdp_thumb_print = kwargs.get('rdp_thumb_print', None)
         self.vm_agent = kwargs.get('vm_agent', None)
         self.maintenance_redeploy_status = kwargs.get('maintenance_redeploy_status', None)
@@ -4353,7 +4358,8 @@ class VirtualMachineReimageParameters(Model):
     will always be reimaged.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -5235,7 +5241,8 @@ class VirtualMachineScaleSetVMReimageParameters(VirtualMachineReimageParameters)
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -5251,7 +5258,8 @@ class VirtualMachineScaleSetReimageParameters(VirtualMachineScaleSetVMReimagePar
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     :param instance_ids: The virtual machine scale set instance ids. Omitting
      the virtual machine scale set instance ids will result in the operation
@@ -6394,10 +6402,10 @@ class WindowsConfiguration(Model):
      This will ensure that VM Agent is installed on the VM so that extensions
      can be added to the VM later.
     :type provision_vm_agent: bool
-    :param enable_automatic_updates: Indicates whether virtual machine is
-     enabled for automatic Windows updates. Default value is true. <br><br> For
-     virtual machine scale sets, this property can be updated and updates will
-     take effect on OS reprovisioning.
+    :param enable_automatic_updates: Indicates whether Automatic Updates is
+     enabled for the Windows virtual machine. Default value is true. <br><br>
+     For virtual machine scale sets, this property can be updated and updates
+     will take effect on OS reprovisioning.
     :type enable_automatic_updates: bool
     :param time_zone: Specifies the time zone of the virtual machine. e.g.
      "Pacific Standard Time"
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_models_py3.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_models_py3.py
index b36ed47a1787..ebe7f85e85aa 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_models_py3.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/models/_models_py3.py
@@ -153,10 +153,9 @@ class AutomaticOSUpgradePolicy(Model):
     :param enable_automatic_os_upgrade: Indicates whether OS upgrades should
      automatically be applied to scale set instances in a rolling fashion when
      a newer version of the OS image becomes available. Default value is false.
-     If this is set to true for Windows based scale sets, recommendation is to
-     set
+     <br><br> If this is set to true for Windows based scale sets,
      [enableAutomaticUpdates](https://docs.microsoft.com/dotnet/api/microsoft.azure.management.compute.models.windowsconfiguration.enableautomaticupdates?view=azure-dotnet)
-     to false.
+     is automatically set to false and cannot be set to true.
     :type enable_automatic_os_upgrade: bool
     :param disable_automatic_rollback: Whether OS image rollback feature
      should be disabled. Default value is false.
@@ -4292,6 +4291,10 @@ class VirtualMachineInstanceView(Model):
     :param os_version: The version of Operating System running on the virtual
      machine.
     :type os_version: str
+    :param hyper_vgeneration: Specifies the HyperVGeneration Type associated
+     with a resource. Possible values include: 'V1', 'V2'
+    :type hyper_vgeneration: str or
+     ~azure.mgmt.compute.v2019_03_01.models.HyperVGenerationType
     :param rdp_thumb_print: The Remote desktop certificate thumbprint.
     :type rdp_thumb_print: str
     :param vm_agent: The VM Agent running on the virtual machine.
@@ -4323,6 +4326,7 @@ class VirtualMachineInstanceView(Model):
         'computer_name': {'key': 'computerName', 'type': 'str'},
         'os_name': {'key': 'osName', 'type': 'str'},
         'os_version': {'key': 'osVersion', 'type': 'str'},
+        'hyper_vgeneration': {'key': 'hyperVGeneration', 'type': 'str'},
         'rdp_thumb_print': {'key': 'rdpThumbPrint', 'type': 'str'},
         'vm_agent': {'key': 'vmAgent', 'type': 'VirtualMachineAgentInstanceView'},
         'maintenance_redeploy_status': {'key': 'maintenanceRedeployStatus', 'type': 'MaintenanceRedeployStatus'},
@@ -4332,13 +4336,14 @@ class VirtualMachineInstanceView(Model):
         'statuses': {'key': 'statuses', 'type': '[InstanceViewStatus]'},
     }
 
-    def __init__(self, *, platform_update_domain: int=None, platform_fault_domain: int=None, computer_name: str=None, os_name: str=None, os_version: str=None, rdp_thumb_print: str=None, vm_agent=None, maintenance_redeploy_status=None, disks=None, extensions=None, boot_diagnostics=None, statuses=None, **kwargs) -> None:
+    def __init__(self, *, platform_update_domain: int=None, platform_fault_domain: int=None, computer_name: str=None, os_name: str=None, os_version: str=None, hyper_vgeneration=None, rdp_thumb_print: str=None, vm_agent=None, maintenance_redeploy_status=None, disks=None, extensions=None, boot_diagnostics=None, statuses=None, **kwargs) -> None:
         super(VirtualMachineInstanceView, self).__init__(**kwargs)
         self.platform_update_domain = platform_update_domain
         self.platform_fault_domain = platform_fault_domain
         self.computer_name = computer_name
         self.os_name = os_name
         self.os_version = os_version
+        self.hyper_vgeneration = hyper_vgeneration
         self.rdp_thumb_print = rdp_thumb_print
         self.vm_agent = vm_agent
         self.maintenance_redeploy_status = maintenance_redeploy_status
@@ -4353,7 +4358,8 @@ class VirtualMachineReimageParameters(Model):
     will always be reimaged.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -5235,7 +5241,8 @@ class VirtualMachineScaleSetVMReimageParameters(VirtualMachineReimageParameters)
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     """
 
@@ -5251,7 +5258,8 @@ class VirtualMachineScaleSetReimageParameters(VirtualMachineScaleSetVMReimagePar
     """Describes a Virtual Machine Scale Set VM Reimage Parameters.
 
     :param temp_disk: Specifies whether to reimage temp disk. Default value:
-     false.
+     false. Note: This temp disk reimage parameter is only supported for
+     VM/VMSS with Ephemeral OS disk.
     :type temp_disk: bool
     :param instance_ids: The virtual machine scale set instance ids. Omitting
      the virtual machine scale set instance ids will result in the operation
@@ -6394,10 +6402,10 @@ class WindowsConfiguration(Model):
      This will ensure that VM Agent is installed on the VM so that extensions
      can be added to the VM later.
     :type provision_vm_agent: bool
-    :param enable_automatic_updates: Indicates whether virtual machine is
-     enabled for automatic Windows updates. Default value is true. <br><br> For
-     virtual machine scale sets, this property can be updated and updates will
-     take effect on OS reprovisioning.
+    :param enable_automatic_updates: Indicates whether Automatic Updates is
+     enabled for the Windows virtual machine. Default value is true. <br><br>
+     For virtual machine scale sets, this property can be updated and updates
+     will take effect on OS reprovisioning.
     :type enable_automatic_updates: bool
     :param time_zone: Specifies the time zone of the virtual machine. e.g.
      "Pacific Standard Time"
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machine_scale_set_vms_operations.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machine_scale_set_vms_operations.py
index 53f15083d764..f995fbbb042e 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machine_scale_set_vms_operations.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machine_scale_set_vms_operations.py
@@ -103,7 +103,8 @@ def reimage(
         :param instance_id: The instance ID of the virtual machine.
         :type instance_id: str
         :param temp_disk: Specifies whether to reimage temp disk. Default
-         value: false.
+         value: false. Note: This temp disk reimage parameter is only supported
+         for VM/VMSS with Ephemeral OS disk.
         :type temp_disk: bool
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: The poller return type is ClientRawResponse, the
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machine_scale_sets_operations.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machine_scale_sets_operations.py
index a4810aa0df8f..ea155be18cac 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machine_scale_sets_operations.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machine_scale_sets_operations.py
@@ -1565,7 +1565,8 @@ def reimage(
         :param vm_scale_set_name: The name of the VM scale set.
         :type vm_scale_set_name: str
         :param temp_disk: Specifies whether to reimage temp disk. Default
-         value: false.
+         value: false. Note: This temp disk reimage parameter is only supported
+         for VM/VMSS with Ephemeral OS disk.
         :type temp_disk: bool
         :param instance_ids: The virtual machine scale set instance ids.
          Omitting the virtual machine scale set instance ids will result in the
diff --git a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machines_operations.py b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machines_operations.py
index 2cb915cdc466..da3d502ad8e2 100644
--- a/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machines_operations.py
+++ b/sdk/compute/azure-mgmt-compute/azure/mgmt/compute/v2019_03_01/operations/_virtual_machines_operations.py
@@ -1445,7 +1445,8 @@ def reimage(
         :param vm_name: The name of the virtual machine.
         :type vm_name: str
         :param temp_disk: Specifies whether to reimage temp disk. Default
-         value: false.
+         value: false. Note: This temp disk reimage parameter is only supported
+         for VM/VMSS with Ephemeral OS disk.
         :type temp_disk: bool
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: The poller return type is ClientRawResponse, the