Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


cannot boot to safe mode

  • Please log in to reply
2 replies to this topic

#1 rudi5


  • Members
  • 17 posts
  • Local time:12:29 AM

Posted 13 February 2010 - 06:06 AM

Hi folks,
Here are the basics. I mention a virus, but the main problem (I think) is not being able to enter safe mode so I am posting this here.
Wednesday morning I ran the updates from windows and on reboot got the BSOD with error code 0x0000007E. Was NOT able to boot to safe mode - system stops on mup.sys driver. Found a 'cure', which was to remove the KB977165 by running the recovery console from my XP CD. Seemed to fix things - laptop boots normally and I can work. However, this morning my Symantec Endpoint anti-virus reports that it finds Backdoor.Tidserv!inf but cannot remove it (it is stuck 'Pending Analysis'). So I went to run a scan in safe mode and viola! I still cannot boot to safe mode, and I have a new stop error - 0x00000050. So, any ideas on how to fix this stop error and get into safe mode?
I am running XP SP3 on a Dell Vostro 1510 with A10 BIOS and a Core 2 cpu. I have Symatec Endpoint running. I am booted normal w/ no problem.

cheers, Rudi

BC AdBot (Login to Remove)


#2 hamluis



  • Moderator
  • 56,541 posts
  • Gender:Male
  • Location:Killeen, TX
  • Local time:11:29 PM

Posted 13 February 2010 - 09:16 AM

I think I'd do an online scan for AV...download/install/use Malwarebytes and SUPERAntiSpyware...and I would then try to install a different AV program, after temporarily uninstalling the Symantec product (it may be damaged).

IIRC, 50 STOP errors have a strong association with malware.

Seems so, http://support.microsoft.com/kb/894278

More learned data on 50 STOP errors can be found at http://www.aumha.org/a/stop.htm.

Alternately, I would post in the appropriate BC malware forum, following all admin procedures posted.


#3 rudi5

  • Topic Starter

  • Members
  • 17 posts
  • Local time:12:29 AM

Posted 22 February 2010 - 10:31 AM

Problem solved. Thanks Louis for responding.

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users