6B BSOD, have to keep replacing ntdll.dll and bootcat.cache for boot

[mikel33]

Hey guys,

Lenovo Ideacenter machine with Win 7 64bit. It was brought in for a BSOD, (0x6B) and I've narrowed down the culprit, but not a permanent solution.

I need to replace ntdll.dll from system32 and bootcat.cache from system32\codeintegrity. After I replace both of those files, I am able to boot. I've run everything I could think of. Most of what D7 has to offer, plus more.

SFC has run, its ok now (had a few issues at first).

If I disable driver signature reinforcement I am able to get 1 or 2 more boots before the BSOD reappears.

Thanks for the help.

-Mike

 

[NYJimbo]

I've run everything I could think of. Most of what D7 has to offer, plus more.

I understand not detailing everything here, program by program, but did you check the HD with different tools, check the ram, check temps, check error logs, etc ?

 

[nlinecomputers]

That bugcheck usually means a bad read on the HDD. You need to do hard drive diagnostics on that unit.