r u using norton ?
try to disable this ccrprxy.exe from startup and c if its the culprit.
possibly this one or one of ur other services is not shutting down properly.
anyway here a way to reduce your shutdown time.
run Regedit.
Navigate to HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control.
Click on the "Control" Folder.
Select "WaitToKillServiceTimeout"
Right click on it and select Modify.
the default value is ( i think) 6000.
Set it a lower value, say 1000.
make sure ur pc is not programd to clear page file at every shutdown
for more click *www.thinkdigit.com/forum/show...tdown+fas ter
ya, as suggested above no harm in scanning in SAFE MODE, with ur av and anti-spy. also cleanup ur pc junk with ccleaner.
if problem persists post ur hjt logfile.