Many times, after shutting WD down, I find that this program is still running
WDFMGR.EXE
I assume it is related to WD, but not sure what it is or why it does not get stopped when WD shuts down.
Not part of WD…
Description:
wdfmgr.exe is part of Microsoft Windows Media Player 10 and above. This process decreases compatibility problems whilst the product is in use. This program is a non-essential process, but should not be terminated unless suspected to be causing problems.
Funny. Didn’t think of looking that up…
Strange thing is, I don’t ever use Media player on that box. There is no screen, speakers or a keyboard on the box.
Seemed to be there alot when I shutdown WD…
Delusional me I guess…
Just go to Start Menu-…Run type services.msc look for Windows User Mode Driver Framework…right click on it…select properties…Change Startup Type to disabled…Media Player will still run…Another of Ms’s services they 'think" we need to have running all the time… 
A good site to check to fisable un-need services for XP and free up some resources:
http://www.theeldergeek.com/services_guide.htm