There is an ugly issue in Windows 10 (Version 1607) – it seems that some (maybe all) users are running a system with a broken System Restore function. Here are a few more details.
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If users of Windows 10 (Version 1607) trying a system restore, they probably ending since January 2017 with error 0x80070091.
I've blogged already about System Restore error 0x80070091, which seems to hit Windows 10 (Version 1607) users.
Windows 10 Version 1607: System restore error 0x80070091 [Fix]
Windows 10 Update KB3213986 kills system restore
In the latter blog post I supposed, that KB3213986 kills system restore – but it seems that also other updates (from Apps) may causing this conflict. This is really odd, because many users are depending on system restore, if other issues with Windows 10 occurs.
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After I've involved in several Microsoft Answers forum threads (German and English), I've escalated this issue to Microsoft (as a Microsoft Answers community moderator I'm able to do that). Now Microsoft's developers has confirmed the issue here:
Microsoft has identified an issue in Windows 10 where System Restore will fail to complete and will generate the following error:
Details:
System Restore failed while restoring the directory from the restore point.
Source: AppxStaging
Destination: %ProgramFiles%\WindowsApps
An unspecified error occurred during System Restore. (0x80070091)
They propose the same solution, Gregory Livingstone und I has published already in my blog posts and within the forum threads: Try to delete the folder %ProgramFiles%\WindowsApps. Let's hope, Microsoft will find the root cause (I suppose Office Hub) and ship a fix for ordinary users, who are not able to tackle with command prompt window and Windows PE.
Addendum: See my new findings here Windows 10: News about System restore error 0x80070091.
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Windows 10 Version 1607: System restore error 0x80070091 [Fix]
Windows 10 Update KB3213986 kills system restore
