Hi all. I'm 15 and I paid for, and built this rig myself I think a month or so ago. It was all fine and dandy. But recently (for about 1-2 weeks now) I've been getting annoying errors, and they're quite strange. Let me explain. When I turn my PC off for the night, and then I turn it back on in the morning. It will be fine for about 5-10 mins and then programs will randomly start crashing and windows will say that they need to be closed. Even though they work perfectly but then suddenly, windows says they need to be closed. So then I click end program and the program closes, and then I can carry on. It will do this numerous times with various programs until one time when I click "End Now" the PC will just restart. Then when it's fully back inside Windows it will come up with this error: I then just click "Don't Send" and then the PC will work PERFECTLY, and it will NOT come up with the error message again... UNTIL I turn the PC off completely for a long duration of time (i.e overnight) It will then happen again on the first boot, but after it will be fine, until it has been off for a long period of time, ect ect. So I normally get this error twice a day, once in the morning, and once after school. Ok, following me so far? Well, I haven't had THAT error for 2 days (when the programs crash, and then the PC restarts) Instead, today, I've had just a magical reboot. Like, I was on google, I clicked a link and then bam, PC restarted. And then when it came back on it came up with the "The system has recovered from a serious error" message, BUT it had a different error signature (sorry, I don't have a screenshot of it) But becuase this error has already came up, it hasn't happened again. I've posted on different forums with people reccomending me to try memtest86, I tried it for 33 minutes (yes, I know, thats not very long) But it passed once, with NO errors. But if it was a memory problem, surely it would've been happening since I got the rig, not only just recently? I also then tried reformatting my PC with a fresh Windows installation, but that also, did not solve the problem. I've used all sorts of stability testing programs; Prime95, Orthos, SiSoft Sandra, 3dmark ect ect and they all pass with flying colours. So does anyone have an ideas? please? I really don't want to return any pieces becuase I don't want to have to go through the hassle + wait. (I won't have a PC for the duration of the return time) I'm fairly convinced it's not a hardware problem, but I might be wrong. So any advice will be extremely appreciated. I hope I explained everything throroughly enough and made it easy to understand my problem. Thanks in advance.