Installer restart fails on Windows 8.1 Asus 2-in-1 T100

I downloaded NS to my ASUS 2-in-1 and ran the installer which removed NIS  and prompted for restart.  During restart I am getting messages that an error occurred and a restart is needed.  it does this twice then Windows / startup not sure which offers me the opportunity to troubleshoot.  I don't think I can 'undo' this (forgot to create a restore point darn it!)  but also cannot uninstall since I can seem to get logged in.

Where would I look for log info about why restart failed, assuming I could get into some sort of safe mode?