Boom, crashed again

And boom, my machine crashed again while using my Microsoft Bluetooth keyboard.  Just like what happened when I used the Logitech keyboard.

Now I don't know for sure if it's a software/OS problem, driver problem, or even hardware problem.  All I know is that the system gets freaking unstable, and I am not happy about it.  I kept getting "Driver Power State Failure", and searching the Net doesn't give me the concrete answer I want.  So I have a few options:

• Switch to a radio signal wireless keyboard (instead of Bluetooth)
• Re-install my Windows 8.1 clean.
• Re-install Windows 7 Ultimate clean.

The more I think about it, the more I lean towards re-installing Windows 7.  Reasons:

• I have pretty of hard disk space to install OS clean in another partition.
• I gained no benefit using Windows 8 at all (except maybe using Netflix on Metro)
• I got my Windows Media Center back

The downsize, of course, is that Windows 7 support will be end early next year.

Hmmm .... think ...