Generic keys to install or Update for Windows 8 & Windows 8.1
Generic product keys allow users to install any version of Windows on their machines. Each version of Windows has its own key.
Here is a list of all Windows 8 & 8.1 generic product keys that are available in 2020: When you have issue on upgrading, you can use generic key to upgrade and then apply your purchased key to activate.
Windows 8 (core): FB4WR-32NVD-4RW79-XQFWH-CYQG3
Windows 8 Pro: XKY4K-2NRWR-8F6P2-448RF-CRYQH
Windows 8 Pro with Media Center: RR3BN-3YY9P-9D7FC-7J4YF-QGJXW
Windows 8.1 (core): 334NH-RXG76-64THK-C7CKG-D3VPT
Windows 8.1 (core single language): Y9NXP-XT8MV-PT9TG-97CT3-9D6TC
Windows 8.1 Pro: XHQ8N-C3MCJ-RQXB6-WCHYG-C9WKB
Windows 8.1 Pro with Media Center: GBFNG-2X3TC-8R27F-RMKYB-JK7QT
Windows 8.1 Enterprise: MNDGV-M6PKV-DV4DR-CYY8X-2YRXH OR FHQNR-XYXYC-8PMHT-TV4PH-DRQ3H
go to Update and security > Activation > Upgrade your edition of Windows > Change product key.
A new box will pop up on the screen, and you will be prompted to enter the retail key that you just bought.