Click on Start, then Run ... type services.msc into the box that opens up, and press 'OK'.

On the page that opens, scroll down to $sys$DRMServer or Plug and Play Device Manager (Whichever is present) ... right click the entry, select 'Properties' and press 'Stop Service'. When it shows that it is stopped, next please set the 'Start-up Type' to 'Disabled'. Press 'OK' until you get back to Windows.

Next, run HJT, but instead of scanning, click on the 'None of the above, just start the program' button at the bottom of the choices. At the lower right, click on the 'Config' button, and then the 'Misc tools' button ... select 'Delete an NT Service' ... copy/paste the following into the box that opens, and press 'OK':

$sys$DRMServer or Plug and Play Device Manager (Whichever you found above)