Do not use temporary folders per session

This policy setting allows you to prevent Remote Desktop Services from creating session-specific temporary folders.You can use this policy setting to disable the creation of separate temporary folders on a remote computer for each session. By default Remote Desktop Services creates a separate temporary folder for each active session that a user maintains on a remote computer. These temporary folders are created on the remote computer in a Temp folder under the user's profile folder and are named with the sessionid.If you enable this policy setting per-session temporary folders are not created. Instead a user's temporary files for all sessions on the remote computer are stored in a common Temp folder under the user's profile folder on the remote computer.If you disable this policy setting per-session temporary folders are always created even if the server administrator specifies otherwise.If you do not configure this policy setting per-session temporary folders are created unless the server administrator specifies otherwise.

Policy path: 

Windows Components\Remote Desktop Services\Remote Desktop Session Host\Temporary folders

Scope: 

Machine

Supported on: 

At least Windows Server 2003

Registry settings: 

HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services!PerSessionTempDir

Filename: 

TerminalServer.admx

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