diff --git a/windows/client-management/mdm/TOC.md b/windows/client-management/mdm/TOC.md
index f4b2ea4002..ebab63e4c5 100644
--- a/windows/client-management/mdm/TOC.md
+++ b/windows/client-management/mdm/TOC.md
@@ -211,6 +211,7 @@
#### [ADMX_Smartcard](policy-csp-admx-smartcard.md)
#### [ADMX_Snmp](policy-csp-admx-snmp.md)
#### [ADMX_tcpip](policy-csp-admx-tcpip.md)
+#### [ADMX_Thumbnails](policy-csp-admx-thumbnails.md)
#### [ApplicationDefaults](policy-csp-applicationdefaults.md)
#### [ApplicationManagement](policy-csp-applicationmanagement.md)
#### [AppRuntime](policy-csp-appruntime.md)
diff --git a/windows/client-management/mdm/policy-configuration-service-provider.md b/windows/client-management/mdm/policy-configuration-service-provider.md
index 6845188857..ef4dfa5e02 100644
--- a/windows/client-management/mdm/policy-configuration-service-provider.md
+++ b/windows/client-management/mdm/policy-configuration-service-provider.md
@@ -1150,6 +1150,20 @@ The following diagram shows the Policy configuration service provider in tree fo
+## ADMX_Thumbnails policies
+
+
+ -
+ ADMX_Thumbnails/DisableThumbnails
+
+ -
+ ADMX_Thumbnails/DisableThumbnailsOnNetworkFolders
+
+ -
+ ADMX_Thumbnails/DisableThumbsDBOnNetworkFolders
+
+
+
### ApplicationDefaults policies
diff --git a/windows/client-management/mdm/policy-csp-admx-thumbnails.md b/windows/client-management/mdm/policy-csp-admx-thumbnails.md
new file mode 100644
index 0000000000..69fd52c66e
--- /dev/null
+++ b/windows/client-management/mdm/policy-csp-admx-thumbnails.md
@@ -0,0 +1,264 @@
+---
+title: Policy CSP - ADMX_Thumbnails
+description: Policy CSP - ADMX_Thumbnails
+ms.author: dansimp
+ms.localizationpriority: medium
+ms.topic: article
+ms.prod: w10
+ms.technology: windows
+author: manikadhiman
+ms.date: 09/25/2020
+ms.reviewer:
+manager: dansimp
+---
+
+# Policy CSP - ADMX_Thumbnails
+> [!WARNING]
+> Some information relates to prereleased products, which may be substantially modified before it's commercially released. Microsoft makes no warranties, expressed or implied, concerning the information provided here.
+
+
+
+
+## ADMX_Thumbnails policies
+
+
+ -
+ ADMX_Thumbnails/DisableThumbnails
+
+ -
+ ADMX_Thumbnails/DisableThumbnailsOnNetworkFolders
+
+ -
+ ADMX_Thumbnails/DisableThumbsDBOnNetworkFolders
+
+
+
+
+
+
+**ADMX_Thumbnails/DisableThumbnails**
+
+
+
+
+ Windows Edition |
+ Supported? |
+
+
+ Home |
+  |
+
+
+ Pro |
+  |
+
+
+ Business |
+  |
+
+
+ Enterprise |
+  |
+
+
+ Education |
+  |
+
+
+
+
+
+
+
+[Scope](./policy-configuration-service-provider.md#policy-scope):
+
+> [!div class = "checklist"]
+> * User
+
+
+
+
+
+Available in Windows 10 Insider Preview Build 20185. This policy setting allows you to configure how File Explorer displays thumbnail images or icons on the local computer.
+
+File Explorer displays thumbnail images by default.
+
+If you enable this policy setting, File Explorer displays only icons and never displays thumbnail images.
+
+If you disable or do not configure this policy setting, File Explorer displays only thumbnail images.
+
+
+> [!TIP]
+> This is an ADMX-backed policy and requires a special SyncML format to enable or disable. For details, see [Understanding ADMX-backed policies](./understanding-admx-backed-policies.md).
+>
+> You must specify the data type in the SyncML as <Format>chr</Format>. For an example SyncML, refer to [Enabling a policy](./understanding-admx-backed-policies.md#enabling-a-policy).
+>
+> The payload of the SyncML must be XML-encoded; for this XML encoding, there are a variety of online encoders that you can use. To avoid encoding the payload, you can use CDATA if your MDM supports it. For more information, see [CDATA Sections](http://www.w3.org/TR/REC-xml/#sec-cdata-sect).
+
+
+ADMX Info:
+- GP English name: *Turn off the display of thumbnails and only display icons.*
+- GP name: *DisableThumbnails*
+- GP path: *Windows Components\File Explorer*
+- GP ADMX file name: *Thumbnails.admx*
+
+
+
+
+
+
+**ADMX_Thumbnails/DisableThumbnailsOnNetworkFolders**
+
+
+
+
+ Windows Edition |
+ Supported? |
+
+
+ Home |
+  |
+
+
+ Pro |
+  |
+
+
+ Business |
+  |
+
+
+ Enterprise |
+  |
+
+
+ Education |
+  |
+
+
+
+
+
+
+
+[Scope](./policy-configuration-service-provider.md#policy-scope):
+
+> [!div class = "checklist"]
+> * User
+
+
+
+
+
+Available in Windows 10 Insider Preview Build 20185. This policy setting allows you to configure how File Explorer displays thumbnail images or icons on network folders.
+
+File Explorer displays thumbnail images on network folders by default.
+
+If you enable this policy setting, File Explorer displays only icons and never displays thumbnail images on network folders.
+
+If you disable or do not configure this policy setting, File Explorer displays only thumbnail images on network folders.
+
+
+> [!TIP]
+> This is an ADMX-backed policy and requires a special SyncML format to enable or disable. For details, see [Understanding ADMX-backed policies](./understanding-admx-backed-policies.md).
+>
+> You must specify the data type in the SyncML as <Format>chr</Format>. For an example SyncML, refer to [Enabling a policy](./understanding-admx-backed-policies.md#enabling-a-policy).
+>
+> The payload of the SyncML must be XML-encoded; for this XML encoding, there are a variety of online encoders that you can use. To avoid encoding the payload, you can use CDATA if your MDM supports it. For more information, see [CDATA Sections](http://www.w3.org/TR/REC-xml/#sec-cdata-sect).
+
+
+ADMX Info:
+- GP English name: *Turn off the display of thumbnails and only display icons on network folders*
+- GP name: *DisableThumbnailsOnNetworkFolders*
+- GP path: *Windows Components\File Explorer*
+- GP ADMX file name: *Thumbnails.admx*
+
+
+
+
+
+
+**ADMX_Thumbnails/DisableThumbsDBOnNetworkFolders**
+
+
+
+
+ Windows Edition |
+ Supported? |
+
+
+ Home |
+  |
+
+
+ Pro |
+  |
+
+
+ Business |
+  |
+
+
+ Enterprise |
+  |
+
+
+ Education |
+  |
+
+
+
+
+
+
+
+[Scope](./policy-configuration-service-provider.md#policy-scope):
+
+> [!div class = "checklist"]
+> * User
+
+
+
+
+
+Available in Windows 10 Insider Preview Build 20185. Turns off the caching of thumbnails in hidden thumbs.db files.
+
+This policy setting allows you to configure File Explorer to cache thumbnails of items residing in network folders in hidden thumbs.db files.
+
+If you enable this policy setting, File Explorer does not create, read from, or write to thumbs.db files.
+
+If you disable or do not configure this policy setting, File Explorer creates, reads from, and writes to thumbs.db files.
+
+
+> [!TIP]
+> This is an ADMX-backed policy and requires a special SyncML format to enable or disable. For details, see [Understanding ADMX-backed policies](./understanding-admx-backed-policies.md).
+>
+> You must specify the data type in the SyncML as <Format>chr</Format>. For an example SyncML, refer to [Enabling a policy](./understanding-admx-backed-policies.md#enabling-a-policy).
+>
+> The payload of the SyncML must be XML-encoded; for this XML encoding, there are a variety of online encoders that you can use. To avoid encoding the payload, you can use CDATA if your MDM supports it. For more information, see [CDATA Sections](http://www.w3.org/TR/REC-xml/#sec-cdata-sect).
+
+
+ADMX Info:
+- GP English name: *Turn off the caching of thumbnails in hidden thumbs.db files*
+- GP name: *DisableThumbsDBOnNetworkFolders*
+- GP path: *Windows Components\File Explorer*
+- GP ADMX file name: *Thumbnails.admx*
+
+
+
+
+
+
+Footnotes:
+
+- 1 - Available in Windows 10, version 1607.
+- 2 - Available in Windows 10, version 1703.
+- 3 - Available in Windows 10, version 1709.
+- 4 - Available in Windows 10, version 1803.
+- 5 - Available in Windows 10, version 1809.
+- 6 - Available in Windows 10, version 1903.
+- 7 - Available in Windows 10, version 1909.
+- 8 - Available in Windows 10, version 2004.
+
+
+
diff --git a/windows/client-management/mdm/policy-csps-admx-backed.md b/windows/client-management/mdm/policy-csps-admx-backed.md
index 0a133ca7ed..e0643a3d68 100644
--- a/windows/client-management/mdm/policy-csps-admx-backed.md
+++ b/windows/client-management/mdm/policy-csps-admx-backed.md
@@ -292,6 +292,9 @@ ms.date: 08/18/2020
- [ADMX_tcpip/Teredo_Server_Name](./policy-csp-admx-tcpip.md#admx-tcpip-teredo-server-name)
- [ADMX_tcpip/Teredo_State](./policy-csp-admx-tcpip.md#admx-tcpip-teredo-state)
- [ADMX_tcpip/Windows_Scaling_Heuristics_State](./policy-csp-admx-tcpip.md#admx-tcpip-windows-scaling-heuristics-state)
+- [ADMX_Thumbnails/DisableThumbnails](./policy-csp-admx-thumbnails#admx-thumbnails-disablethumbnails)
+- [ADMX_Thumbnails/DisableThumbnailsOnNetworkFolders](./policy-csp-admx-thumbnails#admx-thumbnails-disablethumbnailsonnetworkfolders)
+- [ADMX_Thumbnails/DisableThumbsDBOnNetworkFolders](./policy-csp-admx-thumbnails#admx-thumbnails-disablethumbsdbonnetworkfolders)
- [AppRuntime/AllowMicrosoftAccountsToBeOptional](./policy-csp-appruntime.md#appruntime-allowmicrosoftaccountstobeoptional)
- [AppVirtualization/AllowAppVClient](./policy-csp-appvirtualization.md#appvirtualization-allowappvclient)
- [AppVirtualization/AllowDynamicVirtualization](./policy-csp-appvirtualization.md#appvirtualization-allowdynamicvirtualization)