Yes, new motherboard, new CPU, new ram but my old HD booted up into Windows 8 and still shows that it is activated. This was not what I was expecting. Since I dual boot with Windows 7, I next tried booting into 7. No go. So then I tried the Windows 7 DVD to do a repair but it did not support my usb mouse and keyboard. Tried the Windows 8 DVD and mouse and keyboard working just fine. I guess the moral of the story is: new computer, new OS go together.