Windows 10: windows upgraded and want to recover my OEM windows key and window

i recently changed the key and windows 11 home single language is converted into windows 11 pro now it was showing activated by KMS what will i do to get back my previous activated windows that come along with the laptop i can able to check the OEM key of window but it it was not working i have asus laptop

:)

 

Question On OEM Windows clean install......

"Flavors" of Windows licenses

Windows can be a little "odd" about license keys. There are at least 4 categories:

• Retail
• OEM
• Volume (electronic download)
• Corporate (no key needed)

For guaranteed success, the license key and media should be in the same category. If you have retail media, you may not be able to install it using an OEM or Volume license key, even though the key is valid for that version of Windows. *Wtf :wtf: Apparently, this is part of Microsoft's anti-piracy scheme (i.e., all customers are guilty until proven innocent).

 

Windows 7 OEM key

Generally the upgrade has to be done first, before a clean install can be done, and it's not really relevant to transferring the key to another system.

 

Anyone can upgrade to Windows 8 Pro for $14.99.

Microsoft cracked down on the upgrade requirements you now need a windows 7 key OEM or Retail but the code its self needs to be one they listed in there upgrades system, So old keys wont work.