Policy CSP - FileSystem
Tip
This CSP contains ADMX-backed policies which require a special SyncML format to enable or disable. You must specify the data type in the SyncML as <Format>chr</Format>. For details, see Understanding ADMX-backed policies.
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.
Important
This CSP contains some settings that are under development and only applicable for Windows Insider Preview builds. These settings are subject to change and may have dependencies on other features or services in preview.
DevDriveAttachPolicy
| Scope | Editions | Applicable OS |
|---|---|---|
| ✅ Device ❌ User |
✅ Pro ✅ Enterprise ✅ Education ✅ Windows SE ✅ IoT Enterprise / IoT Enterprise LTSC |
✅ Windows 11, version 22H2 [10.0.22621.2338] and later ✅ Windows Insider Preview |
./Device/Vendor/MSFT/Policy/Config/FileSystem/DevDriveAttachPolicy
Dev drive is a drive optimized for performance considering developer scenarios and by default no file system filters are attached to it. Filters listed in this setting will be allowed to attach even on a dev drive.
A reboot is required for this setting to take effect.
Description framework properties:
| Property name | Property value |
|---|---|
| Format | chr (string) |
| Access Type | Add, Delete, Get, Replace |
Tip
This is an ADMX-backed policy and requires SyncML format for configuration. For an example of SyncML format, refer to Enabling a policy.
ADMX mapping:
| Name | Value |
|---|---|
| Name | DevDriveAttachPolicy |
| Friendly Name | Dev drive filter attach policy |
| Location | Computer Configuration |
| Path | System > Filesystem |
| Registry Key Name | System\CurrentControlSet\Policies |
| ADMX File Name | filtermanager.admx |
EnableDevDrive
| Scope | Editions | Applicable OS |
|---|---|---|
| ✅ Device ❌ User |
✅ Pro ✅ Enterprise ✅ Education ✅ Windows SE ✅ IoT Enterprise / IoT Enterprise LTSC |
✅ Windows 11, version 22H2 [10.0.22621.2338] and later ✅ Windows Insider Preview |
./Device/Vendor/MSFT/Policy/Config/FileSystem/EnableDevDrive
Dev drive or developer volume is a volume optimized for performance of developer scenarios. A developer volume allows an administrator to choose file system filters that are attached on the volume.
Disabling this setting will disallow creation of new developer volumes, existing developer volumes will mount as regular volumes.
If this setting isn't configured the default policy is to enable developer volumes while allowing antivirus filter to attach on a deveveloper volume. Further, if not configured, a local administrator can choose to not have antivirus filter attached to a developer volume.
A reboot is required for this setting to take effect.
Description framework properties:
| Property name | Property value |
|---|---|
| Format | chr (string) |
| Access Type | Add, Delete, Get, Replace |
Tip
This is an ADMX-backed policy and requires SyncML format for configuration. For an example of SyncML format, refer to Enabling a policy.
ADMX mapping:
| Name | Value |
|---|---|
| Name | EnableDevDrive |
| Friendly Name | Enable dev drive |
| Location | Computer Configuration |
| Path | System > Filesystem |
| Registry Key Name | System\CurrentControlSet\Policies |
| Registry Value Name | FsEnableDevDrive |
| ADMX File Name | refs.admx |
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