“Unmanaged” is defined by Microsoft as not being managed by a patching tool such as WSUS, SCCM, Intune, or other third-party patching platforms. Even so, I strongly recommend that you never click on “check for updates” on an unmanaged computer when you’re unsure whether you’ve taken any action to defer or block updates. In my own experience, I've not had this happen. I’ve seen this sometimes happen when third-party security software made selections a user didn’t intend. That said, I’ve heard of at least one person who said they merely clicked on “check for updates” and the installation started. Note: Windows 11 should merely offer you the new feature release, it should not automatically install you have to specifically choose to install it. What if you didn’t intend to install Windows 11 and paused it mid-installation? If you’re at the point where the operating system is prompting you to reboot to finish the move to Windows 11, it’s safer to reboot, complete the installation, then follow the guidance above to roll back to Windows 10. You’ll be asked if you want to check first for updates to Windows 11 decline that and follow the wizard to return to Windows 10. If so, and it’s not been more than 10 days since you installed Windows 11, you can go to Settings>System>Recovery and choose “Go Back.” This will revert your computer to the Windows 10 version you had before installing Windows 11. (And you didn’t adjust your registry to manually go around any hardware block.) Instead, you were offered the upgrade because your PC had the right processor, TPM chip, and other necessary items. Let’s assume first that you didn’t use the Insider program to get Windows 11. (Note: this isn't same as repairing a version of Windows that's acting up.) The answer depends on how long ago you installed Windows 11 and how you did so. Can you uninstall it without having to reinstall your old operating system from scratch?

So, you’ve installed Windows 11, kicked the proverbial tires and taken it for spin - and now you want to go back to tried and trusty Windows 10 until the new-OS dust settles.

Windows 10 professional download