You said you Upgraded from Home to Pro, but did you actually install Pro over the top of Home and did you do that from media you created from something you downloaded from Microsoft? If so, and you had come here BEFORE charging into that, I would have provided you instructions on how to save off your full set of HP drivers so you could then have reinstalled them after the update. It's too late to do that now.
Without your specific model number, we can't so a search to look for drivers for your PC. So, you have to provide us with that information.
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