Policy CSP - ADMX_FileSys

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.

DisableCompression

Scope Editions Applicable OS
✅ Device
❌ User
✅ Pro
✅ Enterprise
✅ Education
✅ Windows SE
✅ IoT Enterprise / IoT Enterprise LTSC
✅ Windows 10, version 2004 [10.0.19041.1202] and later
✅ Windows 10, version 2009 [10.0.19042.1202] and later
✅ Windows 10, version 21H1 [10.0.19043.1202] and later
✅ Windows 11, version 21H2 [10.0.22000] and later
./Device/Vendor/MSFT/Policy/Config/ADMX_FileSys/DisableCompression

Compression can add to the processing overhead of filesystem operations. Enabling this setting will prevent access to and creation of compressed files.

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 DisableCompression
Friendly Name Do not allow compression on all NTFS volumes
Location Computer Configuration
Path System > Filesystem > NTFS
Registry Key Name System\CurrentControlSet\Policies
Registry Value Name NtfsDisableCompression
ADMX File Name FileSys.admx

DisableDeleteNotification

Scope Editions Applicable OS
✅ Device
❌ User
✅ Pro
✅ Enterprise
✅ Education
✅ Windows SE
✅ IoT Enterprise / IoT Enterprise LTSC
✅ Windows 10, version 2004 [10.0.19041.1202] and later
✅ Windows 10, version 2009 [10.0.19042.1202] and later
✅ Windows 10, version 21H1 [10.0.19043.1202] and later
✅ Windows 11, version 21H2 [10.0.22000] and later
./Device/Vendor/MSFT/Policy/Config/ADMX_FileSys/DisableDeleteNotification

Delete notification is a feature that notifies the underlying storage device of clusters that are freed due to a file delete operation.

A value of 0, the default, will enable delete notifications for all volumes.

A value of 1 will disable delete notifications for all volumes.

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 DisableDeleteNotification
Friendly Name Disable delete notifications on all volumes
Location Computer Configuration
Path System > Filesystem
Registry Key Name System\CurrentControlSet\Policies
Registry Value Name DisableDeleteNotification
ADMX File Name FileSys.admx

DisableEncryption

Scope Editions Applicable OS
✅ Device
❌ User
✅ Pro
✅ Enterprise
✅ Education
✅ Windows SE
✅ IoT Enterprise / IoT Enterprise LTSC
✅ Windows 10, version 2004 [10.0.19041.1202] and later
✅ Windows 10, version 2009 [10.0.19042.1202] and later
✅ Windows 10, version 21H1 [10.0.19043.1202] and later
✅ Windows 11, version 21H2 [10.0.22000] and later
./Device/Vendor/MSFT/Policy/Config/ADMX_FileSys/DisableEncryption

Encryption can add to the processing overhead of filesystem operations. Enabling this setting will prevent access to and creation of encrypted files.

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 DisableEncryption
Friendly Name Do not allow encryption on all NTFS volumes
Location Computer Configuration
Path System > Filesystem > NTFS
Registry Key Name System\CurrentControlSet\Policies
Registry Value Name NtfsDisableEncryption
ADMX File Name FileSys.admx

EnablePagefileEncryption

Scope Editions Applicable OS
✅ Device
❌ User
✅ Pro
✅ Enterprise
✅ Education
✅ Windows SE
✅ IoT Enterprise / IoT Enterprise LTSC
✅ Windows 10, version 2004 [10.0.19041.1202] and later
✅ Windows 10, version 2009 [10.0.19042.1202] and later
✅ Windows 10, version 21H1 [10.0.19043.1202] and later
✅ Windows 11, version 21H2 [10.0.22000] and later
./Device/Vendor/MSFT/Policy/Config/ADMX_FileSys/EnablePagefileEncryption

Encrypting the page file prevents malicious users from reading data that has been paged to disk, but also adds processing overhead for filesystem operations. Enabling this setting will cause the page files to be encrypted.

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 EnablePagefileEncryption
Friendly Name Enable NTFS pagefile encryption
Location Computer Configuration
Path System > Filesystem > NTFS
Registry Key Name System\CurrentControlSet\Policies
Registry Value Name NtfsEncryptPagingFile
ADMX File Name FileSys.admx

LongPathsEnabled

Scope Editions Applicable OS
✅ Device
❌ User
✅ Pro
✅ Enterprise
✅ Education
✅ Windows SE
✅ IoT Enterprise / IoT Enterprise LTSC
✅ Windows 10, version 2004 [10.0.19041.1202] and later
✅ Windows 10, version 2009 [10.0.19042.1202] and later
✅ Windows 10, version 21H1 [10.0.19043.1202] and later
✅ Windows 11, version 21H2 [10.0.22000] and later
./Device/Vendor/MSFT/Policy/Config/ADMX_FileSys/LongPathsEnabled

Enabling Win32 long paths will allow manifested win32 applications and Windows Store applications to access paths beyond the normal 260 character limit. Enabling this setting will cause the long paths to be accessible within the process.

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 LongPathsEnabled
Friendly Name Enable Win32 long paths
Location Computer Configuration
Path System > Filesystem
Registry Key Name System\CurrentControlSet\Control\FileSystem
Registry Value Name LongPathsEnabled
ADMX File Name FileSys.admx

ShortNameCreationSettings

Scope Editions Applicable OS
✅ Device
❌ User
✅ Pro
✅ Enterprise
✅ Education
✅ Windows SE
✅ IoT Enterprise / IoT Enterprise LTSC
✅ Windows 10, version 2004 [10.0.19041.1202] and later
✅ Windows 10, version 2009 [10.0.19042.1202] and later
✅ Windows 10, version 21H1 [10.0.19043.1202] and later
✅ Windows 11, version 21H2 [10.0.22000] and later
./Device/Vendor/MSFT/Policy/Config/ADMX_FileSys/ShortNameCreationSettings

These settings provide control over whether or not short names are generated during file creation. Some applications require short names for compatibility, but short names have a negative performance impact on the system.

If you enable short names on all volumes then short names will always be generated. If you disable them on all volumes then they will never be generated. If you set short name creation to be configurable on a per volume basis then an on-disk flag will determine whether or not short names are created on a given volume. If you disable short name creation on all data volumes then short names will only be generated for files created on the system volume.

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 ShortNameCreationSettings
Friendly Name Short name creation options
Location Computer Configuration
Path System > Filesystem > NTFS
Registry Key Name System\CurrentControlSet\Policies
ADMX File Name FileSys.admx

SymlinkEvaluation

Scope Editions Applicable OS
✅ Device
❌ User
✅ Pro
✅ Enterprise
✅ Education
✅ Windows SE
✅ IoT Enterprise / IoT Enterprise LTSC
✅ Windows 10, version 2004 [10.0.19041.1202] and later
✅ Windows 10, version 2009 [10.0.19042.1202] and later
✅ Windows 10, version 21H1 [10.0.19043.1202] and later
✅ Windows 11, version 21H2 [10.0.22000] and later
./Device/Vendor/MSFT/Policy/Config/ADMX_FileSys/SymlinkEvaluation

Symbolic links can introduce vulnerabilities in certain applications. To mitigate this issue, you can selectively enable or disable the evaluation of these types of symbolic links:

Local Link to a Local Target.

Local Link to a Remote Target.

Remote Link to Remote Target.

Remote Link to Local Target.

For further information please refer to the Windows Help section.

Note

If this policy is Disabled or Not Configured, local administrators may select the types of symbolic links to be evaluated.

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 SymlinkEvaluation
Friendly Name Selectively allow the evaluation of a symbolic link
Location Computer Configuration
Path System > Filesystem
Registry Key Name Software\Policies\Microsoft\Windows\Filesystems\NTFS
Registry Value Name SymLinkState
ADMX File Name FileSys.admx

TxfDeprecatedFunctionality

Scope Editions Applicable OS
✅ Device
❌ User
✅ Pro
✅ Enterprise
✅ Education
✅ Windows SE
✅ IoT Enterprise / IoT Enterprise LTSC
✅ Windows 10, version 2004 [10.0.19041.1202] and later
✅ Windows 10, version 2009 [10.0.19042.1202] and later
✅ Windows 10, version 21H1 [10.0.19043.1202] and later
✅ Windows 11, version 21H2 [10.0.22000] and later
./Device/Vendor/MSFT/Policy/Config/ADMX_FileSys/TxfDeprecatedFunctionality

TXF deprecated features included savepoints, secondary RM, miniversion and roll forward. Please enable it if you want to use these APIs.

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 TxfDeprecatedFunctionality
Friendly Name Enable / disable TXF deprecated features
Location Computer Configuration
Path System > Filesystem > NTFS
Registry Key Name System\CurrentControlSet\Policies
Registry Value Name NtfsEnableTxfDeprecatedFunctionality
ADMX File Name FileSys.admx

Policy configuration service provider