Windows Vista vs. Windows 7
14 years ago
You know, there was a lot of crap going around about windows vista when it came out. I never had a single problem with it. But we just got a new computer with windows 7, and I'm getting error messages left and right. It's not any faster, and it's ugly. TBH, I'd probably switch back to Vista if I had the option.
FA+

And errors happen with every operating system, especially when they first come out. Same is true with the service packs that come with them later on. Ever had a machine with Windows XP Service Pack 3? Some programs that were originally designed for XP don't work with Service Pack 3.
I've had loads of problems with HP over the years, and it usually has to do with the preinstalled software (in the Windows 98 SE days, it was the software that came prepackaged in CD-ROM with the computer) having a conflict of some sort with the operating system.
I've had lots of computers over the years, and most have been HP's or Compaq's of some sort or another. My suggestion would be to break out the pocketbook, buy a copy of Windows 7 by itself, (in other words, to not use the recovery option) and download the drivers for your computer from the Internet before installing and burn them to a CD... then back up your data and do a clean install that way. I've found that to be the only effective way to deal with the problems I've had that were caused by how HP/Compaq set up the machines at the factory.
I hope you manage to solve everything :( Not sure if Ubuntu is a usable option for you? You could consider getting your pc to run in dualboot for the time being. (I don't know much about computers and can work just fine in Ubuntu, never have issues, tablet works out of the box as do most things.)