Hello, I recently have been having problems with my USB ports and put some different USB drivers in my Windows folder, which crashed my computer. When Windows tries to boot, the computer lists a bunch of registry links to device files that the computer cannot find. Then it says that the Windows configuration is invalid and to run Windows Setup again. I have tried reinstalling Windows over itself twice and neither time has worked at all. I have some valuable files on my computer that I would really like to recover. Is there any way I can get the computer to boot so I can get my files? Any advice is appreciated, thanks.