I now have Microsoft helping me after a few days wait and service is there.
So far I tried a "clean" reboot and re-install that does not load any drivers exept those required by MS. Still falls over.
I've disbaled "auto-reboot" on error and found that my problem seems to be...
I use AVG Free version. Tried Uninstall but that of course did not uninstall it. Have downloaded the AVG Clean Tool. Will try this tomorrow then try again.
I'll try upgrading any graphic drivers as well.
Wish me luck
Andrew
PS is Microsoft Support an oxymoron???? :-)