Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

OS: Vista 64, Desktop

First thing I tried was to Boot In Safe Mode - I noticed that that it would hang on loading AVG???.sys (some AVG file can't remember), and since AVG was the one that asked me to restart in the first place, I figured something was going on with its drivers. So I created an AVG Repair Disk, renamed all the AVG/avg.sys files. Didn't work - same thing except now when I boot in Safe Mode it hangs on crcdisk.sys.

Next thing I try is booting from the Vista install disk. When I get to "System Recovery Options" under repair it doesn't show my Operating System. alt text

In the above, instead of Operating System: Micr... there is No, or Nothing, or Unknown (I don't remember). I have 2 hard drives, both partitioned. Although the OS is on Drive 0 first partition, it isn't "C", so maybe this is why it isn't finding it? I've tried chkdsk /F on every single partition, but they all return with no errors found. So now, I'm not sure what to try next. Is there a away to run Start Repair/Restore and choose the OS drive?

share|improve this question
up vote 2 down vote accepted

There was an advertised issue with AVG's latest update:

Hope this helps.

share|improve this answer
Yup, that was it, thanks! – Nick Dec 7 '10 at 14:44

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.