Hi - Trevor here.
Windows 7 professional - I have a our company IT department that would normally support me but it is Sunday. The Toshiba is only 3 months old & I understand it is all the latest software.
I have managed to access now via pressing F7 after restarting. It has conducted dsk checks etc and appears to now be now have advance to Windows start up.
I pushed Cntrl Alt Del to then move to the sign in screen. It hung for extended period and now appears to be ok.
I will now back up entire computer and try to use it.