We will discuss all three scenarios one by one.
Rollback major Windows updateRollback Windows Insider Preview buildUninstall cumulative or minor Windows updates
The steps to rollback a major Windows update and Windows Insider update are the same. Note that rolling back to a previous build would undo any changes made to the computer, including settings, personalization, installation or removal of applications, etc., during this period.
Rollback major Windows updates (including Windows Insider build rollback)
If you recently installed a major feature update (Windows 10 Version 20H2 is coming soon) and it doesn’t work well on your system, you can downgrade or rollback the update within the first 10 days of installation. You can also rollback Windows update after 10 days using this neat trick. To rollback Windows update: Once the computer boots up again, you can check that the device has now rolled back to its previous build by typing in winver in Run. After 10 days, Windows will delete the temporary backup of the last build from the system drive. If you follow the above mentioned instructions, you will get the following error:can’t go back to the previous version rollback You can also manually delete the previous Windows installation folder to save space on your hard drive. Since this method can only bring you back to the previously installed build, you cannot go back to any older builds/versions. For that, you will need to restore your system entirely or make a fresh installation of Windows.
Uninstall a minor or cumulative Windows update
There are two ways to uninstall a cumulative or minor update from Windows 10:
Using Windows Settings
Using command-line
If you are not very comfortable with the latest Windows Updates, you can disable Windows Updates permanently but it is not recommended especially for Internet connected systems. Windows Updates brings in security fixes for many vulnerabilities. So it is always advised to keep your system up to date. Also see:
How To Rollback Windows Updates After 10 Days Of Upgrade3 Ways to Uninstall Windows 11 Cumulative UpdateDelete previous Windows installation after Windows 10 May 2020 Update To Save SpaceHow to Uninstall Windows 10 Updates without Booting into ComputerHow to Use File History And Backup & Restore In Windows 10