31 updates 137mb for my Win8.1 systems and all went through perfectly, roughly 10 minutes to download install and reboot
After your announcement in 'Updates' I choosed 37 for my laptop A (Win8.1 pro). Everything worked fine until REBOOT.
That offered me a BSOD with
Trap 000015F6 ******* EXCEPTION *******.
I waited 10 or 15 minutes, then tried 'Strg+Alt+Entf' and system booted as usual with 'Configuring updates ...'. I tried to get more information, but until now I didn't succeed.
HDW