Windows 10 rollback BSOD 0x000007b

I decided to roll back to 7 Ultimate after 10 seemed to cause issues with Nvidia and Guild Wars 2. But when I did so, I was told my copy of 7 Ultimate was not genuine, and I no longer have the key (moving cross country, I lost a lot of things). Any idea how to go about a fix? I can't even go back...

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1 Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz ASUSTeK COMPUTER INC. Z97-AR 8.00 GB (2x4) Kingston HyperX Beast Memory Sapphire Dual-X AMD R9 280 Graphics Card - 3GB GDDR5, 384-bit (1) AMD High Definition Audio Device (2)...

This is my third time trying to post this (lost it from it auto-logging me out). So if I seem abrupt and scattered, sorry. My problem is that when I boot up my system and Windows 7 starts to load, it gives me this BSOD:...

Hi everyone, I have a Windows 7 Professional computer with 1 hard drive installed. I recently partitioned the hard drive to have two sections, 1 for my Windows 7 installation and one (20) GB Vista partition. While trying to install Vista, something went wrong so I had to force shut it down because...

I find myself in the extremely dissapointing position of having to dump W7 in favor of Vista. I hate doing it because I really like 7 and really hate Vista, but W7 isn't reading my numeric keypad as a numeric keypad (it's just sending the numbers as though the keystrokes are coming from the qwerty...