Announcing Windows 10 Insider Preview Fast Build 16294 for PC Insider

Build 16294 Update
1st attempt to update failed at Configuring updates 5%
Booted back into 16291 immediately, no restoring previous version message.
2nd attempt proceeded normally to Working on updates, stayed on 14% then flashed to 30%. Restarted, lost video temporarily at 33% video returned and switched to my primary monitor (this is as usual, 1st stage is on monitor 3, which is driven by on-board graphics.)
Incremented rapidly to 54% and remained with that % shown then jumped to 75%. Restarted, as usual the post screen appeared on Mon #3, with the throbber, and a message "Updating your system 100%." 1st time I've seen that message on Mon #3.
Video disappeared. There was regular drive activity for about 15 minutes, after several minutes of very little drive activity at 25 mins after losing video I powered off, and on again.
After 3 auto attempts to boot, the system did start, and "Working on updates" 75% appeared on my primary monitor. That progressed to 98%, system rebooted with some 'post' video, but then no video for almost 2 minutes. Log on (lock) screen appeared, "Hello" recognised me, another 1 1/4 minutes and all monitors had video and Edge auto-loaded (as is normal after an update.)
I have a Hyper-V virtual machine set up on the Insider system.
Insider is now running build 16294, with no immediately obvious problems. I have rebooted again and all seems normal.
Feedback posted.

Wynona said:

Could be, Keith, but I'm downloading now and going back to bed.

Woke up and couldn't sleep, and here's a new Build . . .

Your sixth sense must have kicked in .