Flush Out System Viruses

There are times when we encounter disturbance on a PC that is intermittent and erratic. Even after troubleshooting everything we can at the hardware, firmware (bios) & driver levels, we might feel a little lost. Some viruses can infect your system all the way down to the “System BIOS”.

These are generally called “WORM” or “BIOS” viruses and are considered to be “STEALTH”.
Undetectable by your VIRUS Protection Software, go ahead and SCAN anyway. Still the virus doesn’t seem to go away.

The ONLY solution is to remove the virus. Unfortunately, you will have to REFORMAT your system.
NOTE: This means you will have to backup your DATA!

Here are the STEPS:

1. REMOVE any existing PARTITIONS on your Hard Disks using FDISK, SETUP or NUKEM.

2. Dissipate the CMOS battery. Refer to your Motherboard Manual for instructions.
Open CASE, locate CMOS battery, remove battery, locate JUMPER adjacent to battery area, place JUMPER on pins 2 & 3, power on PC, power off PC, return JUMPER to pins 1 &2, replace the CMOS battery.

3. Power on PC, enter SETUP (DEL or F2), select LOAD SETUP DEFAULTS to restore the BIOS settings, setup your HDD type (select AUTODETECT IDE), select MAIN to set the TIME & DATE, save & exit SETUP. The PC reboots.

4. Insert OS BOOT DISK; boot PC to OS BOOT DISK; partition your HDD with FDISK then, POWER OFF for 20 seconds.

5. Reboot OS BOOT DISK; use FDISK to clear the Master Boot Record. (e.g.. FDISK /MBR)

6. Format your HDD (e.g.. FORMAT C: /S/U)
NOTE: If FORMAT reports: INVALID DRIVE SPECIFIED – The previous step kicked a virus out of the master boot record, repeat from step #2, you must have forgot a step.

7. Reload your OS.