If your system hangs
about 2 or 3 minutes at startup, where you can't access the Start button or the
Taskbar, it may be due to one specific service (Background Intelligent
Transfer) running in the background.
Here's what you do:
1. Click on Start/Run,
type 'msconfig', then click 'OK'.
2. Go to the 'Services'
tab, find the 'Background Intelligent Transfer' service.
3. Disable it, apply
the changes & reboot.