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Would like to do a proper rollback with the windows.old folder of Windows 10 which was restored from external backup to it's original location; yet the system and startup dialog negates the option.

Any registry flags I need to reset?

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Evidently Windows 10 deletes the following 2 hidden folders after 30 days, and they are needed to roll it back while in Windows 10. You need more than the windows.old folder

$Windows.~WS

$Windows.~BT

Source

I am sure there is a manual way to do as there was with W7, but I have not experimented or found a HowTo article so far.

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  • I'll try that next
    – mxfh
    May 14, 2016 at 21:14
  • Basically a roll back is replacing folders and files from the Windows.old folder, then fix the bootloader to work with the old OS.
    – Moab
    May 14, 2016 at 21:28
  • So it's impossible to roll back after more than 30 days?
    – A.L
    May 15, 2016 at 1:19
  • Who said impossible? Everything is impossible until its not.
    – Moab
    May 15, 2016 at 2:09
  • 1
    My workaround was simply to restore from an entire backup dated before the upgrade.Ugly but functional.
    – Tetsujin
    May 15, 2016 at 8:04

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