Here is the error message:
System Restore did not complete successfully. Your computer's system files and settings were not changed.
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)
What I've tried so far:
This is a known issue. delete or rename folder WindowsApps then restart system, after this, restore function can be cover. follow this link step by step to fix this issue.
Windows 10 Version 1607: System restore error 0x80070091 [Fix] http://borncity.com/win/2017/02/22/windows10-version-1607-system-restore-error-0x80070091/
Here is a thread discussing in Microsoft forum for your reference.
System Restore failed - Source: AppxStaging Error - (0x80070091) https://social.technet.microsoft.com/Forums/windows/en-US/93a0d2a2-d9f1-4b57-97b9-0ca30de656aa/system-restore-failed-source-appxstaging-error-0x80070091?forum=win10itproapps
This happened to me after I updated my Lenovo's drivers and had issues with driver power states. I was able to perform a restore by doing the following:
C:cd C:\Program Filesattrib WindowsApps -h this removed the hidden attributerename WindowsApps WindowsApps-renamedexitWhen the restore is complete, a previous version of WindowsApps will have been restored.
To then go back and delete WindowsApps-renamed:
cd C:\Program Filestakeown /f WindowsApps-renamedrmdir WindowsApps-renamed /SUser contributions licensed under CC BY-SA 3.0