I am having a problem with lightroom 5.7.1 running on windows 8 64 bit. Each time we try to open the software the computer crashes, we have removed the lock file and reset preferances as suggested with no success. We have uninstalled and reinstalled the software with no success, still the same crashing issue
If the entire computer crashes, this is either a hardware malfunction, or a bad/corrupted/old video driver.
Start by installing/reinstalling the latest video driver for your graphics card. If that doesn't help, then you need to run diagnostics on your hard disk, memory, and also check to make sure the fans are cooling the CPU properly.