
If you have a Windows sticker with a Windows key somewhere on or in your computer (look underneath laptop battery, etc) then use it. But Activating a copy of Windows requires a Windows product key and an active internet connection (so Microsoft's database can log the OS key and assign a new product-specific GUID for future updates and records). Anyone can install as many copies of these "Home/Basic Edition" WinOS as they like on any computers they like for nothing more than the price of a puny USB stick, and each copy will work for 30 days (on or off the internet) without any issues other than daily reminders about pending Product Activation and Windows Updates. If Media Center Pack is already installed on your machine then it's probably best to contact Microsoft Support so they can assign you a new Win8 key.Ĭlean bootable Win7/8.x images are free public downloads at the Microsoft site. Installing a Media Center Pack overwrites the Win8 key with its own and recovering the Win8 key then becomes a bit involved.

The readable "Product ID Key" in the Registry is also unique for each copy, but it serves a different purpose and is of no use during the OS install.

The Win8 key is indeed stored in the Registry, but not in plaintext (it is scrambled as a barrier vs casual piracy). Windows 8.1 Pro: XHQ8N-C3MCJ-RQXB6-WCHYG-C9WKB These are "placeholder" keys intended to allow a Win8 install or imaging (for bulk-license deployment), but they cannot be used for (and will be rejected by) Win8 Activation.

Lol, why do people make things so difficult? - Īlternately, you can use one of Microsoft's generic Win8 keys (there's quite a few to choose from).

Samsung 850 PRO 512GB SSDs, 4xSATA3 RAID0 NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
