
This has been mentioned in posts going back to 2008.

The above works when no other problems exists.Īttempts to run the 64 bit version of procmon to observe a process’ activity results in the following error: Unable to load Process Monitor Device Driver. You can go a step further and delete the port or WSD information from Device and Printers > Propertes > Ports tab as well. Last step, software doesn’t always remove every piece of a device’s installed configuration. What to do if you cant install printer driver? Windows can identify most devices and download drivers for them automatically. An unknown device isn’t just unknown - it’s not functioning until you install the right driver.

Unknown devices show up in the Windows Device Manager when Windows can’t identify a piece of hardware and provide a driver for it. Where do I find unknown drivers on my computer?
