Windows 10: Windows 10 crashes after log in screen

So I was overclocking my CPU and I reached its limits of 4.6ghz. after that the PC would not enter bios, so i managed to reset the bios manually. After this when ever i would try to boot it would show a blank blue screen for a couple of seconds, then bring me to the log in screen and whenever i try to enter my password the screen flickers off then back on and is frozen, then when i make any other inputs it restarts. I then restored windows to an older date, this temporarily fixed the issue, the next day it was back but i had done no more overclocking, the problem just reappeared after i thought i fixed it. Does anyone know how i could possibly fix this problem???

:)

 

Black Screen after Log on


Computer boots to windows log on,have no password here.After a minute on log on it go to a black screen,stays there forever. I can get to Task Manager from black Screen,lost on what to do next. Just want my Windows 10 back, not sure what caused this problem. Any Suggestion on what my next step should be?*Sad

 

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?

 

Black Screen after Log on

So this is not a BSOD ? Have a Windows 10 disc or USB Flash Drive made ? How are you getting to task manager Ctrl.+Alt+Del ? Any cursor on screen ?