At some point in the past I tried out a serial monitor program from HHD Software. Somehow it left it's port monitor driver (hhdspmc64.sys) installed on my system. I'm trying to track down problems, and I want this thing gone so I can prove it's not the source of my other problems.

I've proven it's a class filter using the devcon command (from the Windows DDK): devcon classfilter Ports upper, which lists hhdspmc64 as the only upper class filter on that class.

How do I get rid of this thing?


It took me a few tries, but I finally found the appropriate invocation of devcon to do the job:

devcon classfilter Ports upper !hhdspmc64

A variety of examples of devcon usage are found at the examples page, and reading devcon help classfilter is mandatory for understanding the removal syntax.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.