Two Minute Drill: DriverQuery.exe

Two Minute Drill: DriverQuery.exe

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Hello AskPerf!  Blake here to discuss an internal command line tool called DriverQuery.  What exactly is DriverQuery?  I’m glad you asked.  In a nutshell, DriverQuery is a command line tool that displays a list of all installed device drivers and their properties.  Let’s check out its options and some examples.  When you type “DriverQuery /?” from a command prompt, the following appears:

 

DQ

Now let’s take a look at some DriverQuery examples:

Show all installed device drivers which includes Module Name, Display Name, Driver Type, and Link Date

C:\>Driverquery.exe

*To display addition columns (see below), add the “/V” switch

Module Name, Display Name, Description, Driver Type, Start Mode, State, Status, Accept Stop, Accept Pause, Paged Pool, Code(bytes,  BSS(by,  Link Date, Path, Init(bytes

 

Show all installed device drivers in a list view

C:\>Driverquery.exe /fo list

 

Do not list the column header

C:\>Driverquery.exe /nh

 

Find drivers that are not signed

C:\>Driverquery.exe /si | findstr FALSE

 

Find drivers that are currently Running

C:\>Driverquery.exe /v |findstr Running

 

For most of these commands, you may want to add the “>” command redirection option to output the results to a .txt file.  For example:

C:\>Driverquery.exe /v > C:\results.txt

 

Additional Resources:

-Blake Morrison

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  • Great tool that let's you quickly check the current version of any driver. Very handy when you want to upgrade a system driver and want to compare the currently installed ones with the ones in a hotfix!

  • DriverQuery is a nice tool but it's read-only by definition. If you need to modify something (e.g. update or replace a driver) using command-line interface you go either with PNPUtil or DevCon. Please see social.technet.microsoft.com/.../how-to-manage-device-drivers-with-command-line.aspx for features and differences.

  • Yes, I agree. I meant that if you need to update, say mrxsmb20.sys on a file server, you can quickly check which version is currently installed and compare it to the version in the latest hotfix. :)

  • Unfortunately, when it comes to “check... the latest hotfix” it surprisengly becomes a very tough task. For instance, for Hyper-V I'm maintaining such a list: social.technet.microsoft.com/.../3150.aspx. The same is true for clustering: social.technet.microsoft.com/.../3153.aspx. But for other Windows components there are no such lists. So it becomes increadingly hard to determine which exactly hotfix is the “latest” to date.

  • Nice tool. Can we expect it to be merged with Powershell one day ?

  • Good question, to which if I knew I could not answer.  Sorry!

  • You can do it today by querying WMI from Windows PowerShell. For instance, you could use the “Win32_PnPSignedDriver” class (msdn.microsoft.com/.../aa394354) or find something more appropriate.