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Is there a registry setting that will allow me to re-enable the 'Go Back' button in Windows 11 after 10 days for going back to Windows 10?

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    No. You are too late. windows.old will have been deleted.
    – DavidPostill
    May 25 at 17:16
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    @DavidPostill Ahh I didn't realize that's how it worked. If I would have backed up that folder I wonder if it would have worked.
    – Rich
    May 25 at 17:17
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    "Is there a registry setting that will allow me to re-enable the 'Go Back' button in Windows 11 after 10 days for going back to Windows 10?" - YES However, it must be changed, before the 10 days has expired otherwise Windows.old would have already been deleted.
    – Ramhound
    May 25 at 17:47

3 Answers 3

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Is there a registry setting that will allow me to re-enable the 'Go Back' button in Windows 11 after 10 days for going back to Windows 10?

There absolutely is a registry key that can be used to extend the period to 60 days. However, it must be changed before Windows.old is deleted, in the original 10 day timeframe. If Windows.old is deleted, then it's not possible, to revert back to the previous version.

You can verify if it's possible by running the following in an elevated PowerShell prompt:

DISM /Online /Get-OSUninstallWindow

If you receive Error 1168 – Element not found it means the system cannot be rolled back to the previous version. If the system can be rolled back then it will display the number of days the rollback period is set to.

You can change this value anywhere from 2 to 60 by running the following command in an elevated PowerShell prompt:

DISM /Online /Set-OSUninstallWindow /Value:60

Source: DISM operating system uninstall command-line options

These commands work on Windows 10 20H2+ and Windows 11 21H2+

The registry key associated with this feature can be found at:

HKEY_LOCAL_MACHINE\SYSTEM\Setup\UninstallWindow 

You can set the value of UninstallWindow to a decimal value anywhere between 2 and 60.

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Once the 10 days have passed, to downgrade back to Windows 10 will require a clean install, and you will lose all your data.

You will need to get it from Microsoft at Download Windows 10.

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    Or do an image backup first, with (e.g.) Macrium Reflect Free and just restore the image. Save any files you have changed in the meantime before the restore. May 26 at 11:41
  • Downvoter, care to explain what's wrong with this answer? It's quite short, but it's to the point and accurate.
    – gronostaj
    May 26 at 13:52
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    @gronostaj: I have stopped reacting to those things - no point.
    – harrymc
    May 26 at 15:26
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    @MichaelHarvey I didn't know about the comment wars thing. IMO if an answer is plain wrong and unsalvageable, sure - just downvote it to hell. But otherwise I'd rather see that answer improved and remove my downvote and I don't think I can expect someone to improve it without telling them what needs improving.
    – gronostaj
    May 27 at 9:05
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    @gronostaj "Once the 10 days have passed, to downgrade back to Windows 10 will require a clean install," - although this answer is technically not incorrect it lacks essential details (compare to ramhound's answer). It doesn't add any significant information in regards to the other answers I suppose this is the reason for the downvotes is ... but I can only speculate here. I have similar problems with my own answers.
    – Albin
    May 27 at 10:28
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You can save a Windows install as an image file easily if you have an external drive big enough, and a 250 GB USB drive costs around $25 these days. There are a number of free software apps, including Macrium Reflect, EaseUS Todo, AOMEI Backupper, and others. I make an image weekly, and before I make a change that I might want to back away from. You have to make a 'rescue' USB stick or CD that you would boot the PC from if you want to restore an image. It's not hard.

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