Description of the Application Much like virus protection software, BIOSGuard is a BIOS backup utility used on Matrox cards, which is designed to periodically refresh the bios with a known good BIOS. BiosGuard is designed to re-flash the BIOS once per week, at 3:00 AM if the system is left running over night, or at boot-time if the system was shut down. It runs in the background and is transparent to the user. The setup program (InstallShield) installs the application for Win9x and NT. The user will need to reboot the computer for BiosGuard to become active. Uninstall Procedure 1) Edit the Windows registry with the REGEDIT program. In the registry: a) Delete the Registry Key : HKey_Local_Machine\Software\Matrox\BIOSGuard b) HKey_Local_Machine\software\Microsoft\Windows\CurrentVersion\Run delete the "Bguard.exe" entry. 2) Press Ctrl-Alt-Del (choose Task Manager in Winnt) and choose to end the bguard task. 3) Delete BGuard.* from the \windows\system directory (Win9x) or the \Winnt\system32 directory (Winnt).Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.