Also freezing at various points in the boot process after the new "update". Sometimes it tanks while the MS Logo is on the screen with the spinning dots - which stop spinning - no mouse, no keyboard. Other times it lets me enter my password, and then tanks when the desktop appears.
The only solution for me (after chasing down drivers and various diagnostics) has been to roll back the update. I did that once and the damn thing came back on its own while I was away from my computer. Rolled back a second time opting to defer any new updates for seven days. When it starts threatening me again, I hope that MS has figured out why this is happening.