Is it OK to uninstall old Windows updates?

Windows Update Cleanup: When you install updates from Windows Update, Windows keeps older versions of the system files around. This allows you to uninstall the updates later. … This is safe to delete as long as your computer is working properly and you don’t plan on uninstalling any updates.

Can I uninstall old Windows 10 updates?

To uninstall a Feature Update, head to Settings > Update & Security > Recovery, and scroll down to Go Back to the Previous Version of Windows 10. Click the Get Started button to start the uninstallation process.