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# citrix-vads
Slackbot
04/09/2023, 6:24 PMThis message was deleted.
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BridgeBot
04/09/2023, 6:29 PMUsrclass.dat represents HKEY_CURRENT_USER\Software\Classes of the user. Sure. You can delete it. A new login will generate a new one.
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HD
04/09/2023, 7:17 PMThannk you Enki !
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BridgeBot
04/09/2023, 7:24 PMJust curious, why do you want to delete it? I would tread cautiously before deleting it from existing user profiles on Win10/Win11, as some Windows Store apps throw data in there.
BridgeBot
04/10/2023, 12:25 PMI would leave it. If you delete the usrclass.dat file from system, the Start button, search and desktop options like calendar, sound button will not work, but if you restart the computer the usrclass.dat file will be automatically restored and or created. If you want to test back it up first. The user last.dat file represents this [https://learn.microsoft.com/en-us/windows/win32/sysinfo/registry-virtualization](https://learn.microsoft.com/en-us/windows/win32/sysinfo/registry-virtualization)
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HD
04/11/2023, 9:09 PM@Ray Davis @ruben - Sorry for delay in reply- Temp profiles are getting in our infra though permission looks good,, Saw in one of the article that deleting Usrclass.dat will fix the issue.. However not going with that
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BridgeBot
04/11/2023, 9:11 PMBy all means test it and see if it will help you. I would test it on a non production account.
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HD
04/12/2023, 11:31 AMSure @Ray Davis.. just for ref - https://support.citrix.com/article/CTX128255/user-profile-manager-error-windows-cannot-access-the-specified-device-path-or-file
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BridgeBot
04/12/2023, 12:01 PMIf you are roaming this, usrclass.dat and delete it, just remember it will be reset for the user. AKA Startmenu, FTA things like that. It may fix your issues indeed. Just let the user know this will happen. "Profile Management 1909 and newer automatically include **usrclass.dat*** in the Files to Synchronize. UPM 2103 and newer add it for Windows 10 but not for RDSH. If added to the exclusion list, then Profile Management 1909 and newer automatically removes it from the exclusion list, usrclass.dat* contains file type associations. For roaming file type associations, you can export/import HKCU\SOFTWARE\Classes\Applications" https://docs.citrix.com/en-us/profile-management/current-release/profile-management-best-practices.html#start-menu-roaming
BridgeBot
04/12/2023, 12:02 PMThanks for the extra link as well
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HD
04/12/2023, 3:11 PMMake Sense.. Thanks a lot Ray