CPU usage 100%

[Gomer]

Following a 'freeze' the PC now is very very slow.
Task Mananger shows services.exe uses 99% of CPU. Not
allowed to end process! What can I do?!

 

[Guest]

You can pinpoint the application by first going to run,type:Msconfig
In Msconfig,services,hide all microsoft services,then disable all,close-out,
restart computer.Back on desktop,if the cpu has returned to normal
you'll know its 3rd party software.Enable one at a time till you locate
the problem.

 

[Gomer]

Thanks for your help but problem seemingly not with 3rd
party software.
Following the 'freeze' the PC now detects new Hardware -
the modem - though it was previously installed ok. I have
physically removed the modem card and the PC works fine.
When the modem is replaced PC slows down as described
before. I clicked on Control Panel and then on Add
Hardware and am informed that I 'Cannot Run Two Device
Installations'and that another device installation is
underway. Thus it must be the modem installation that's
taking up 100% CPU? But why?! What can I do?