"Live Anti virus" disables video.

CyberMechanic
CyberMechanic used Ask the Experts™
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Received two separate computers into the shop, both with no video, both recently downloaded "Live Anti-virus.  Removed the disks from the computer and installed them via USB on the shop computer.  Ran antivirus scans.  Nothing found.  Both machines, one a Dell and the other an HP exhibit exactly the same symptoms.  With no video, I cannot scan the drives in their natural environment.  Unable to access the Safe Mode.  Anyone know whether this "ransom" program disables the video?  Any way I can force a return of the video?  
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Top Expert 2009

Commented:
Hi.
How far into the boot process do they get to with display?
What scanners used when slaved?

Author

Commented:
There is no video at any point.  Machine fires up, power supply tests good, by the way, all the proper sounds, everything looks great, except NO video at any point.  I used Malware Bytes (Tech version), Norton 360, and SpyBot S & D.
Top Expert 2009

Commented:
Strange that nothing was detected.

No bios/post screen display?

Are they desktops or laptops?

Sorry about all questions, just puzzling!
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Author

Commented:
Both Machines are Desktops.  Absolutly no screen display at all, even upon turning machine on.  I feel that the video driver(s) may be attacked by this program.  I am considering going ahead and wiping the drives and re-installing.  Maybe that will work.  Are you aware of any of these viruses which may flash the BIOS?  
Top Expert 2009

Commented:
Never came accross any.
Could you try adding in a graphics card and test to see if you get any display.

Another option would be to flash the bios with the latest update from motherboard's manufacturer website

Author

Commented:
On the first machine this occurred on, I swapped out the video card and the power supply.  I have not done so on the machine I am working on now.  BTW, N-360 just located two "risks."  I'm hoping that works.  It did not show them on the first scan.

I like the flashing BIOS with mfr's update.  I'll try these and see if I can flash it without seeing it!
Top Expert 2009
Commented:
Note what the detections are.

When trying another card did you reset the cmos by removing the battery whilst machine was powered down/unplugged and left "dead" for about 5-10 mins

Thats a first for me with the flash bios statement. Whoops!
It is puzzling with the issue and with what is working on machines ;-)

Author

Commented:
You do good work!  Thanks for the assistance.  I've been just popping the BIOS battery out and immediately replacing it.  Leaving out for 5 mins. did the trick!  Thanks.
Top Expert 2009

Commented:
No prob. Glad you got them sorted!

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