I had the same problem , although start up was fine.. as the OP didnt mention , it was the ShutDown that took forever.
One thing i did was disable my net connection , before i tried to shut down.. and it got a little faster. so then i...
I'd be doing that first.
I reccomend
Spyware Doctor
Spybot
AdAware
Windows Defender
Spyware Blocker (after your system is cleaned)
scan with EACH of those , while NOT connected to the net.
available here:
http://majorgeeks.com/downloads31.html
I am pedantic and would reboot and scan with the same program again after the reboot , and and do the same with each scan.
apart from a bunch of uneccesary programs loading into your Systray, that just WONT shut down...
I bet thats your problem.
and you will not need to
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