As we all know after Upgrade your Windows 10 PC to the latest Windows 10 version 20H2, There is a timeframe of 10 days to uninstall current Windows 10 and go back to the previous version. That means with this 10 days grace period lets you decide the current version working as expected, And compatible with all your installed applications. Or in case you find installing the new windows version causing the issue you have a chance of rolling back.
That means after 10 days there is no option to Rollback as the system automatically deletes the previous version files automatically (or unless you delete the windows.old ) which causes the option in recovery is gone. Here this post we came through a tweak to extend the 10days limit to go back to your previous version of Windows.
Change number of days to uninstall Windows 10 upgrade
Starting with Windows 10 version 20H2 (October 2020 Update), Microsoft is adding new commands options to its Deployment Image Servicing and Management (DISM) tool to extend the time which allows you to uninstall an upgrade after it’s installed. Here perform steps below to change the number of days to uninstall Windows 10 upgrade.
Note: you must perform steps below ( to extend the 10day limit to go back to your previous version of Windows ) within 10 days after upgrade to the windows 10 October 2020 update.
First of all open the command prompt as administrator then perform the command :
DISM /Online /Get-OSUninstallWindow
Which displays how many days are left for rollback to the previous version.
Now type command DISM /Online /Set-OSUninstallWindow /Value:30 and hit the enter key to set the number of days before the previous installation is deleted.
Note: here you can change the value 30 as your own number of days.
That’s all now you have successfully extended ( 30 days ) the period to uninstall a Windows 10 upgrade. To check and confirm the same type command DISM /Online /Get-OSUninstallWindow
Now within 30 days whenever you feel new Windows 10 version not suitable for you or getting problem you can use Go back to the previous version option from settings – > update & security -> recovery -> go back to the previous version to uninstall windows 10 and revert back to windows 10 October 2020 update.
Note: Make sure not to use Storage Sense to delete the installation files.