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***WARNING - RUNNING ANY DEBUG SCRIPT ON YOUR SYSTEM DOES HAVE THE
POTENTIAL TO DELETE ALL FILES ON YOUR SYSTEM AND / OR OTHER
PROBLEMS. ***
This script has been tested both in dos and in
windows.
Here is the script:
Boot to a Windows
boot disk and use the following script.
If debug can't be found on the Windows
boot disk you may have to extract
it. The computer will generate the text in red
and you will type the text in white, where it says (ENTER) just hit the
Enter key don't type the word. After the computer restarts you will
receive a CMOS checksum error and will have to reset your time , date
and other settings in your BIOS .
debug (ENTER)
- A <ENTER>
MOV AX,0 <ENTER>
MOV AX,CX <ENTER>
OUT 70,AL <ENTER>
MOV AX,0 <ENTER>
OUT 71,AL <ENTER>
INC CX <ENTER>
CMP CX,100 <ENTER>
JB 103 <ENTER>
INT 20 <ENTER>
<ENTER> Note: Nothing is typed on this line
G <ENTER> By pressing G this will execute the above script, ensure
you have read and agree to the above warning.
Q <ENTER>
If you think you may have a
virus that infects the BIOS you may also want to clear your hard drive.
Otherwise it could reinfect your bios after you reboot. Click here
for a script that will clear cmos / nvram and your primary hard
drive.
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