1. What's the difference between the "Search All Drivers" and the "Search Non-Microsoft drivers" submenus of the Backup button in the toolbar?

We all know that every Windows operating system distribution incorporates many device drivers. So the difference between "Search All Drivers" and "Search Non-Microsoft drivers" is that the former searches all device drivers, including those packaged within Windows, while the latter only searches drivers not contained in Windows. Because device drivers which are contained in Windows operating system are automatically installed when detected, it is NOT necessary to back them up. Microsoft provided drivers are shown in black, whilst Non-Microsoft provided drivers are shown in red.

2. Why is the driver file number Driver-Backup backs up different from the number it notifies me?

Some driver files can't be found in your hard disk, therefore Driver-Backup can't back them up. The most frequently lost file is the digital signature file, which is named "*.cat", and this file is not necessary for the device driver to function. When you restore drivers without a digital signature file in Windows 2000, XP and Vista, the operating system will warn you. You can just ignore the warning message and continue to install them. What's more, Driver-Backup will create a file named as "drvbck.pdb" in each driver backup folder, which contains driver restoration information.

3. What's the difference between the "Show All Backed-Up Drivers" and the "Show Backed-Up Non-Microsoft drivers" submenu of the Restore button in the toolbar?

This question is the same as question one. The former shows all device drivers in the backup directory including those packaged within Windows, while the latter only shows drivers not contained in Windows.

4. The driver version of some device drivers is null, why?

The installation files of these drivers don't include the driver version, so Driver Magician can't extract it. This often happens in Windows 98 and Windows Me

5. Why does my computer seem to be unresponsive during the driver restoration process?

Device drivers are in the lower layer of operating system, so during driver installation, settings of Windows operating system change according to the drivers being installed, and this may make the PC unresponsive

6. I have backed up drivers of my Windows 98 operating system, can I use them in Windows 2000 or Windows XP?

Some device drivers can be used in all Windows operating systems, but there are lots of device drivers which can only be used in certain operating systems, so if you are not sure please don't try to use drivers of one operating system in another.