Tuesday, 23 December 2014

Repair Bios

The BIOS is a set of instructions written on a chip.

Repairing the BIOS on the motherboard is usually a matter of updating the BIOS in a process called flashing the BIOS. The BIOS is a set of instructions written to a chip called an EPROM, or erasable programmable read only memory. The BIOS gives basic instructions on how the operating system communicates with installed hardware. Flashing BIOS can allow support for new components not previously supported, such as a different type or brand of drive. If the BIOS becomes corrupted by a virus or other malicious program or error in settings, flashing the BIOS can restore the computer to proper working condition.


1. Power down the computer, unplug the power cord and press the power button to discharge all current.

2. Open the case and write down the motherboard manufacturer and model. This will be printed on the motherboard in larger type and easy to locate.

3. Boot your system. Write down the BIOS manufacturer, version and date. You may have to reboot a couple of times as this information flashes on the screen pretty quickly.

4. Go to the motherboard manufacturer's website and download the newest BIOS software onto the USB flash drive. There may also be a program for flashing the BIOS available; download this program as well. The program will be compressed and needs to be extracted to the USB flash drive.

5. Reboot the computer. As the computer is booting, press the key required to enter setup. The correct key varies from board to board.

6. Look for the boot order under the "Advanced" settings screen of the setup program. Change the boot order to allow the DVD drive to be the first boot drive. Save and exit setup.

7. Reboot the computer with the Windows 7 install disk in the DVD drive.

8. Locate the flashing program on the USB flash drive and double-click the file to run it. If you are prompted to back up the old BIOS, select "Yes." If the system becomes unstable or other problems arise after the BIOS update, you can revert to the old BIOS.

9. Reboot the computer and enter setup as you did earlier. Select the option to set all BIOS settings to default. Save, exit and reboot the computer. Check that everything is working properly.

Tags: flash drive, flashing BIOS, BIOS instructions, BIOS instructions written, boot order, enter setup