Good evening everyone. I ran into a problem with my PC and can't seem to figure out how to pinpoint this problem with my computer. Last week, I remember putting an old USB flash drive in one of the USB ports on the motherboard. The flash drive has not been used in about two years and once I put the flash drive in one of the ports on the motherboard, my PC Monday evening. On Monday, just after getting to my desktop and working with Microsoft Edge, my system had locked up and was not responsive. After not responding, my monitor turned off and said no signal, even though my case fans were still on, so I had to power off the PC and restart. After a restarting my PC a few times by holding down the power button, within 5 minutes of use, my PC would not respond and then restart at random. Yesterday, within 5 minutes of using Chrome, my speakers made the bzzzz sound and then restarted. I am really hoping that the USB flash drive that I used a week ago, didn't damage one of the USB ports on the motherboard. Would this be a possible cause to my Windows 10 PC randomly restarting and not responding/locking up? I checked the event viewer and for each restart that occured, I received a critical error with kernel power (41). I also have an error with driverframeworks-usermode (10110 & 10116). Please help. I am hoping that my motherboard is okay and my components are okay. Would it be best to begin looking for new PC components or to perform a motherboard upgrade? When I used that same flash drive in my Dell Inspiron 1545 laptop, there were no problems. I cannot seem to figure out exactly why my Desktop gaming PC is randomly restarting and having these critical power errors. For now, I am going to use a different PC to work on and hopefully troubleshoot my main PC soon. I won't be able to use Train Simulator or games for a while until my PC is fixed. I did a bit more research as well and as I was reading, I read that the latest build of Windows 10, version 1709 is known to cause many systems to lockup and restart. I am also debating if it would be worth it to revert back to Windows 7.