Venue 8 Pro - Problem Windows 10 Update

Hello,

when I try to update Windows 10 on my Venue 8 Pro, it stucks at 40% (over all - big circle in the middle of the screen) and 23% (features and drivers - written below as text) - November Update 1511.

I waited for hours. After complete new installation (lates ISO files) the same thing happened.

So I have always to interrupt the installation, then it is set back to the previus version. As every time I want to start the update, the same thing happens, this is very annoying.

What can I try to update Windows 10?

Best regards,

Erich von Maurnböck