So..... after the roll back to Win 8.1, "Restart" still didn't work.

Tired and frustrated, as a last resort - pressed the Lenovo OneKey recovery button..

Factory reset, and back to square one setting up a new Win 8.1 PC;
and Restart now seems to have been repaired and working again...

CONCLUSION: Two wasted days and nights, one brand new PC at risk of being buggered...

Will I risk trying Win 10 again..? maybe... perhaps once more before the free 12 months expires...
Definitely if microsoft relents and reinstores user control of updates.


I do think it's a huge improvement on Win 8.1,
but when both are stripped of the gimmick apps and reduced to minimal XP / Win 7 style appearance,
Can't say I really see any significant improvement.