Computer will not start

Happened all of sudden, without any reason?

Try to boot into recovery environment and do a startup repair
or system restore

Swaman737 said:

It started when the comp froze. I had to turn it off w the pwr button. On restart got bsod, just one time. Now it goes to start repair. Will not repair or restore..

startup repair has a clickable text something like "view diagnostic details". Click on it. What action doesn't return status 0x0?

in recover environment->command prompt:

dir c:
dir d:
dir e:

Wat is you windows drive letter? Assume it's D

Code:

 
chkdsk/f  D:

Replace D with actual drive letter! any error? Repaired?
Eventually run twice. All repaired?

Also do:

Code:

Chkdsk /f /r  D:

replce D with actual drive letter
takes hours to complete, but let it complete. Any errors?
Windows 7 recovery environment->memory diagnotistics. Let it run whole night when you sleep. In the morning check if you have faulty memory.

Most of the time it's faulty memory.
Bug Check 0x50: PAGE_FAULT_IN_NONPAGED_AREA

Swaman737 said:

Nothing shows anything diff than 0x0
Running chkdsk now and doesn't show any bad files..
Thx, will let you know what happens

Did you do Chkdsk /f /r or Chkdsk /f ?

The first one as actually the same as last one. Only extra is step 4 and 5, that takes a long time to complete. it outputs only a few lines (if disk is running healthy). You can see the progress in blocks. Assume the progress is 1000blocks each minute and the total amount of blocks is 50000. Then it takes about 50 minutes to complete. Look at the screen when it's finishing!! So you see the results!

But most likely you have faulty memory!