Not fully clear.
- What's the relation between the ONU and your problem.
- What message popped up exactly from what program? I've never seen a PC giving a message that the processor needs an update. Moreover, the AMD Radeon is a video processor.
- You updated the driver. What driver, and where did you find it?
- What's the relation between the printer cable and the error?
- It finished loading what? You don't tell about you (or it) starting loading something.
- What exactly is "The BSOD is still there." It's quite normal it stays on the screen if you do nothing.
My guess: you installed a wrong driver. In that case, a driver rollback is the solution. http://windows.microsoft.com/en-us/windows/restore-driver-previous-version#1TC=windows-7 tells how.
It's the first time i got this error.
Details before the error:
•Looking for info. about the ONU on chrome
•My processor (AMD Radeon) needed an update (window popped up)
•Updated the driver
•Connected an USB cable from my printer to my pc
•As i was about to print, the Blue Screen of Death appears and says about that error
•It's been 2 hours since it finished loading and the BSOD is still there.

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