Help Please re Virus?

oxters

Hi

I am hoping for some advice from helpful techies re a probable virus.
I have a Dell Inspiron Laptop (Windows Vista) and a couple of days ago got an AVG warning of a Trojan Horse Virus being stopped by the security system.

Today, I can't boot up as the screen message says it has stopped loading to prevent damage to hard drive and to restart and check for viruses and run CHKDSK /F

Unfortunately every time I try to restart I get the same message with 5 x codes e.g. 0 x 0000007B etc

As far as I know I can't run any checks or disk maintenance until I can boot it up.

Is this a trip to the shop or is there anything I can try first?

I can provide remaining codes if that helps?

Thank you for any help?

Ed

UsernameAlreadyExists

that code sounds quite nasty.
There's loads of information about it here

waddler_8

Start the computer and immediately start tapping F8 continuously. Can you reach the Advanced boot options menu, and do you see there the option Repair my Computer?

-TangleFoot-

UsernameAlreadyExists wrote: »

There's loads of information about it here

More here too...

oxters

Oooh! Sounds bad.

We are off on hols tomorrow so will give it a go on return but thank you all meantime for the information. I will report back when I have read and digested and had a go.

Very helpful techies.

oxters

waddler_8 wrote: »

Start the computer and immediately start tapping F8 continuously. Can you reach the Advanced boot options menu, and do you see there the option Repair my Computer?

OK now back from holidays and tried that - the Repair my Computer appeared and I presses "return" but back to
*** STOP 0x0000007B (0x8725DBAO,0xC0000034,0x00000000,0x00000000)
So I can't do very much it seems

waddler_8

If you have your Vista disk you should be able to access the command prompt via the repair my computer > system recovery options from that.

Tutorial: http://www.bleepingcomputer.com/tutorials/command-prompt-in-windows-recovery-environment/

From there you can run chkdsk.

Method two: http://www.vistax64.com/tutorials/67612-check-disk-chkdsk.html

oxters

waddler_8 wrote: »

If you have your Vista disk you should be able to access the command prompt via the repair my computer > system recovery options from that.

Tutorial: http://www.bleepingcomputer.com/tutorials/command-prompt-in-windows-recovery-environment/

From there you can run chkdsk.

Method two: http://www.vistax64.com/tutorials/67612-check-disk-chkdsk.html

Thank you waddler - I am prepared to giver that a go having had a quick read. I have looked out the "Drivers and Utilities" disc which contains Device Drivers and Diagnostics and Utilities.
Is that what I need to use? And should that get me past the STOP Screen?
My wife will kill me if I loose her photos!! Is it a good idea to continue if the virus may do more damage when I get in?

Thanks

waddler_8

The Drivers & Utilities disk is probably not be the one you need - Do you have any other Dell recovery/installation disks?

It's not necessarily malware to blame (although you can't rule it out) as from your first post it seems the computer failed to boot a couple of days after the AVG detection.

...a couple of days ago got an AVG warning of a Trojan Horse Virus being stopped by the security system.

Today, I can't boot up...

There's a Dell support document here: http://support.dell.com/support/topics/global.aspx/support/kcs/document?docid=DSN_338069&isLegacy=true (Stop 0x0000007B INACCESSIBLE_BOOT_DEVICE)

I would try chkdsk first.

Before doing anything, you could use a linux boot disk to recover important personal files (photo's etc)
http://www.winhelp.us/index.php/other/recover-files-using-puppy-linux.html