kanewarriors :
Hi USAFRet
It was included when purchased my current computer. It was originally Windows 8 but I got the free upgrade to Windows 10.
OK. An Upgraded Win 10 should be no problem for the licensing.
For the OS activation, read and do this before you change any parts:
https://support.microsoft.com/en-us/help/20530/windows-10-reactivating-after-hardware-change
http://www.tomshardware.com/forum/id-3164428/windows-build-1607-activation.html
For the actual OS operation, be prepared for a full wipe and reinstall of everything.
Your current OS *might* boot up in the new hardware, or it may fail massivel.y
Basically, 3 outcomes:
1. It boots up just fine
2. It fails completely
3. It boots up, but you're chasing issues for weeks.
I've seen all 3.
Prepare for a full reinstall.
How to do a CLEAN installation of Windows 10