After setting up a few computers I have noticed some seem to stick on 15% during one of the updates my solution is:
1) from the metro start screen type "msconfig" then press enter
2) select the services tab from the top
3) MAKE SURE "hide all Microsoft services" is ticked
4) click "disable all" then "apply"
5) restart your computer and try updating again
Had a customer today who recieved a phone call from "microsoft" please be carefull and just hang up on them. Microsoft willl never ring nor any other legitimate company saying you have a virus.
Just put the phone down and run a virus scan.
There has beeb rumours of windows blue (windows 8 update) having the option to bypass the main metro style start screen and may also include a start bar.
