Win 10 does not boot after update

esebm said:

Hi,
My PC (win 10 pro 64bit) never boots after any update. I just see a black screen with those little white dots rotating on the lower half of the screen and they do that for hours. That nonsense started with the anniversary update a month or so ago.
I have to turn the PC off and on and go through the BIOS setup until it finally finishes booting.
After that it boots every time until after the next update.
Can someone give me any advice?
Thanks,
Ed

You might have solved your problem, but I just had the anniversary update. The next time I turned on my computer I got a black screen with the circling dots. This went on for several hours. I dug for information too, and saw a one-liner about unplugging USB devices. The very second I unplugged my Logitech Wireless Mouse; Win10 booted and gave me the logon screen. No mouse of course. Power shut down and rebooted to BIOS to see that my USB's had been put to sleep. Activated them and booted again. After Win10 was fully loaded, plugged mouse into USB and Win10 did a driver install. All good so far. I cannot imagine most people will know their USB's were shut down and were locking them out Win10. What kind of update does such a thing? How do they expect a normal person to fix it? Well, if you have something plugged in a USB port and cannot boot Win10, try unplugging it and resetting the USB in your BIOS.

I had a similar experience after a recent update. When that black screen showed up, I cut the power and on rebooting checked the BIOS and the boot-up had switched from the HDD to the DVD. I switched it back to HDD and then it booted normal.