How To Tell Which User Profile Disk UPD Belongs to Which AD User

UPD, short for User Profile Disks, is a new disk type for Remote Desktop Services in Windows Server 2012 R2. It’s an alternative to roaming profiles and folder redirections for RDS to store user profiles as a separate VHDX disk on dedicated file storage. The disk is mounted to the user session as soon as the user logs into the RDS server and gets unmounted when the user logs off.

If you have a lot of users using RDS with UPD enabled, there will be a lot of individual UDP files stored on the file share, named with the unique GUID of the AD user, like below:

UPD List 2 600x315 - How To Tell Which User Profile Disk UPD Belongs to Which AD User

So, how to identify which UPD disk belongs to which user account?

You can use the following PowerShell cmdlet to find out the user based on the GUID.

Or, find out the GUID based on the user account ID.

Or, even better, use this little portable standalone tool called Sidder to help you to quickly identify which UDP belongs to which AD user. You will need .Net 4.5 Framework to use this tool.

sidder v2 overview 600x403 - How To Tell Which User Profile Disk UPD Belongs to Which AD User

The ones in orange are the ones that are in use at the moment. The tool also allows you to delete UPD as well. Deleting UPD will result in a fresh start for that user next time when they log in.

One thought on “How To Tell Which User Profile Disk UPD Belongs to Which AD User

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