Windows 10: Computer freezing and crashing in windows + during startup

Hello everyone,for a while now my computer has been freezing and crashing at random intervals while in use. It started pretty tame with maybe 1 or 2 crashes per week, but since then it's developed into something much worse, crashing at least 4 times a day. This problem started in late June of this year, and I've made several attempts since then to resolve this issue such as updating drivers, cleaning the inside of the computer, and at one point I tried to wipe the computer completely to no avail The computer crashed as it was in the wiping process. Through multiple tests I can somewhat concl

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all games crash!

ive watch my temps and both the cpu and gpu are within normal ranges. when it freezes it simply freezes the image and stops the sound. i must reboot to get back to windows.

 

all games crash!

I suggest you run rthdribl > http://www.daionet.gr.jp/~masa/archives/rthdribl_1_2.zip
Increase the window size step by step and watch your vga temps permanently.
What happens?
If it crashes, run at stock speeds as suggested before and retry.

P.S.: When your system locks, does the display signal turn off after a time?
Stuttering sound or no sound at all when freezing?
What X1800XT model do you own exactly?

 

Can't get GPU-Z to start with Windows 8.1 startup

I'm not sure how to do that. Could you list the steps for a noob?