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×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
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×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
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- Re: Need a Windows activation key after reinstalling windows...

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10-18-2026 12:40 AM
Basically What the Title says, I recently reinstalled windows 11 Due to Performance issues and now my windows 11 needs an activation key.
Solved! Go to Solution.
10-18-2026 12:52 AM - edited 10-18-2026 12:53 AM
Did you install a different edition of Windows 10 or 11 than the one that came preinstalled on your system? If yes, that is likely the issue. You need to install the same edition.
For example, if your system originally came with Windows 10 Home or Windows 11 Home, install the Windows 11 Home edition. Installing a different edition, such as Pro, will not activate using the original digital license.