Trying to launch in every compatibility mode (+ as Administrator), turning off frame buffer effects and shadows, turning off videos, removing the biologo.bik, leclogo.bik and legal.bik files, turning off thread optimization in the NVIDIA Control Panel, launching in windowed mode, turning on and off vsync tried every one of them, but none of them worked. I've tried every single fix I came across, but to no avail. It does appear in the Task Manager, but under background processes. For some reason the game won't launch at all now. Tried launching KotOR 1 again a few days ago, but without success. This is a funny one as I hope we can find a solution.I bought KotOR 1 and 2 a few weeks ago (on Steam), installed them, both worked just fine without giving me any trouble, so I've put them aside for a while. Then with this deleted, defrag the drive to consolidate the space which will hopefully force the relocation of that file to another location on the disk, then try again.

Maybe try a delete the DiskArenaCache file (located in the swtor etailclient folder (sorry if the names aren't right, am at work). Why might SWTOR and not other games, SWTOR streams texture and mesh information from the disk, if you play the game and monitor disk activity you will see it is a constant. But memory issues might also cause problems like this, corrupted RAM in a PC will have many issues like this. Examples of what might cause this are issues with the motherboard, checking the BIOS versions and chipsets etc. Though it happens while SWTOR is playing it is something that they are use within the system that is causing this.

The physical hardware just switching off? Or is it a reboot? Either way this sounds like some issues more than SWTOR.

Star wars the old republic pc crash