For example, using the /si parameter provides information on just the signed drivers. Using the /v parameter (verbose mode) provides more details. Using the /fo parameter allows you to format the results as a list or to save the results in a CSV file (Comma Separated Values) so you can open them in a spreadsheet application such as Excel. (If you want to do any type of detailed analysis, you should save the results as a CSV file.)
To create a spreadsheet file containing information about only the signed drivers, you would open a Command Prompt window and type the command:
Driverquery /fo csv /si > signeddrivers.csv
To create a spreadsheet file containing detailed information about all the installed drivers, you would use the command:
Driverquery /fo csv /v > alldrivers.csv
Troubleshoot Vista system drivers more efficiently with these tools | Microsoft Windows | TechRepublic.com