If you're already using Windows 11, that means you've probably set it up with a Microsoft account — unless you've already checked out our guide on how to use a local account when setting up Windows 11 . If you do already have a Microsoft account set up, don't despair: you're still not locked into using a cloud-based account on your PC. Instead, you can disconnect your Microsoft account from the cloud and convert it to a local account instead.
How to Remove Microsoft Account from Windows 11 – Complete Guide
By following this method, you won’t lose any information or data. You can disconnect from Microsoft’s various cloud services and still get the most out of your Windows 11 PC.
To get started, open the Windows 11 Settings menu. You can find this by pressing the Windows key + I, or by opening the Start menu and selecting the Settings cog.
If you're using a school or work account, deleting it is much the same.