delete the connection[network connections highlight it and delete.
Now do a bit of registry editing - quite simple
Go to Start /run/type in the field 'regedit'
Go to 'Edit' on the top bar and 'find'
type one the field AOL.
All the comes up highlight and delete.
No go to Control and add remove software and remove McAfee.
If you have an propriery firewall in go the Control Panel and make sure the Windows one is off
Now reboot and reinstall Sky