I am using Windows XP SP2 with all the latest updates.
When inserting any new USB device, or installing any non USB device, I get the normal "New hardware detected" popup.
Thats where things go wrong. Services.exe will then take up 100% CPU power, which I traced through Process Explorer to a module called umpnpmgr.dll. The hardware will not install and sit there happily for as long as you dont shutdown the system eating 100% CPU usage. The "new hardware" popup baloon will remain indefinatley.
This laptop has had an overhaul as it was formally infected by spyware of all kinds. Ran Ad-Aware, Spybot, SysInternals Autoruns to remove suspicious entries then Hijack this, which is all clear now.
I do not wish to reinstall the laptop so I need to find out if anyone knows of this umpnpmgr.dll bug