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Monday, July 27, 2015

Windows Profile versions

When using roaming profiles and Windows 10 you will notice that it creates V5 (version 5) profiles by default (.V5 extension)

You might ask why version 5 but there is a good explanation:

Windows 8 and Windows 8.1 could create V3 and V4 if a hotfix were used and a change was made to the registry.

Windows 8.1: Incompatibility between Windows 8.1 roaming user profiles and those in earlier versions of Windows

Windows 8: Incompatibility between Windows 8 roaming user profiles and roaming profiles in other versions of Windows

Registry change (HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ProfSvc\Parameters\UseProfilePathExtensionVersion = 1 (DWORD))

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This will give the following summary:

Windows versions Profile Versions created
Windows XP/2003 V1 (no extension used)
Windows Vista/2008 .V2
Windows 7/2008 R2 .V2
Windows 8/2012 .V2 or V3 if hotfix and registry change used
Windows 8.1/2012 R2 .V2 or V4 if hotfix and registry change used
Windows 10/2016 .V5

Example Userstate folder/share:

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