ICS SB686P Series, Product Manual

Page: 63 / 126

Manual Number: 40110-005-2 Page 53
Boot Sector Virus Protection
This option allows you to request AMIBIOS to issue a warning when any program or virus issues
a Disk Format command or attempts to write to the boot sector of the hard disk drive.
The Setup screen displays the system option:
Boot Sector Virus Protection Disabled
Available options are:
Disabled
Enabled
If the Boot Sector Virus Protection option is set to Enabled, the following message displays when
a write is attempted to the boot sector.
Boot Sector Write!!! Possible VIRUS: Continue (Y/N)?
Select Y or N as appropriate. You may have to select N several times to prevent the boot sector
write.
The following message displays if any attempt is made to format any cylinder, head or sector of any
hard disk drive via the BIOS INT 13 Hard Disk Drive Service:
Format!!! Possible VIRUS: Continue (Y/N)?
Select Y or N as appropriate. If you select Y to continue, formatting proceeds normally. If you do
not want to continue formatting, you may have to select N several times,
depending on how many retries are performed by the upper-level software. For example, DOS
does at least five retries before the Format utility is actually terminated.
Note: You should not enable boot sector virus protection when formatting a hard drive.
The DOS hard disk Format utility does not use INT13H function AH=05H to format the hard disk.
It only verifies the hard disk using the INT13H Verify function (AH=04H). The virus warning
message is Not displayed during DOS hard disk drive formatting.
Saving and Exiting
When you have made all desired changes to Standard CMOS Setup, press <Esc> to return to the
AMIBIOS Setup Main Menu screen.
You may make changes to other Setup options before exiting from AMIBIOS Setup. You may save
the changes you have just made or you may exit from Setup without saving your changes.