Forum Discussion
Increase the size of user profile disk in my remote desktop server
hi szuguan,
What you need to do is easy, you launch dispart, you execute the commande "select vdisk file=<VHDX>" and you execute the commande "expand vdisk maximum=<New size disk>" and after that you attach the disk in disk manager and extend the disk.
Example:
Hi, to increase the 5GB “User Profile Disks” limit on a Windows 2016 RDS server (when the GUI option is grayed out), follow these steps:
Change the global limit (if possible):
Use PowerShell:
Set-RDSessionCollectionConfiguration -CollectionName "YourCollectionName" -SizeInMB <NewSize>
This updates the limit for new profiles, but existing profiles remain at the old size unless you manually expand them.
Manually expand existing .vhdx files:
Ensure the user is logged off.
Locate the .vhdx file (e.g., UVHD-S-1-5-21-xxxx.vhdx) in the configured profile path.
Mount the file in Disk Management (Action > Attach VHD) or via diskpart.
Extend the volume inside the .vhdx (in Disk Management, use “Extend Volume” or in diskpart use:
select vdisk file="C:\Path\To\File.vhdx"
attach vdisk
select volume <Number>
extend
Dismount (detach) the VHD.
When the user logs on again, they will see the increased space.
Increase the limit for a single user only:
Simply expand that user’s .vhdx file manually, as above, without changing the global setting.
Data loss:
If you correctly extend the volume, no data is lost. You’re just adding more space.
Additional tips:
If needed, temporarily disable “User Profile Disks” in the Collection to avoid conflicts.
Always have a backup of your .vhdx files before making changes.
Hi Micheleariis,
Thanks for your answer and guide. I have tried but am stuck at the "Manually expand existing .vhdx files:" I am sure the user is signed out. First, I successfully "attach vhd" in disk management, I can see an additional volume there, and a drive letter "F" is assigned to it. I right-click the volume and see the "Extend Volume" is grayed out, nothing I can do here.
Secondly, since I have no luck in disk management so I go to use diskpart. The "select vdisk" and "attach vdisk" executed without problem, but when I do the "list volume", I can not find the volume I want (I've checked many times).
Please advise, thank you.
hi szuguan,
What you need to do is easy, you launch dispart, you execute the commande "select vdisk file=<VHDX>" and you execute the commande "expand vdisk maximum=<New size disk>" and after that you attach the disk in disk manager and extend the disk.
Example:Hi L_Youtell_974,
This work! Thanks for your guide and answer. ;D
