Windows 10: Black screen and WAIT during bootup

For two years I have had three hard drives installed. One small one went bad and at bootup I would get that information with "Press F1 to resume" which I would do and then windows would load. I upgraded to windows 10 from 7 three weeks ago, same message, and no problem, as it would still go right into windows. Last week I noticed windows update had a list of important updates. I believe I also had an nvideo GeForce driver update which I am sure I did first without problems.
When I did the windows updates and had to restart, I noticed I had a slightly different look but it still took me to the same press F1 to resume. However, the result was it went to a totally black screen with a tiny band of the new windows blue across the top and in the middle of the screen it said WAIT, not in windows type but in the same script when you first begin booting computer. It just remained there and there was no activity taking place, no blinking red light or solid red light like my computer always does. After at least 20 minutes of no activity I rebooted with the same result. Repeating the F1 kept giving the same result, and further reboots and then the F1 caused the computer to reboot maybe 2 out of 5 tries instead of directly going to the black screen. At one point I quickly saw something where I believe it askd to press tab or possibly delete and then gave an option to press F1 or F2. I am not sure which I pressed but it did go into windows and everything was fine for the rest of the day. I let my computer on but at some point overnight it had rebooted and back to the press F1 to resume which results in back to the black screen WAIT and this is where I am at again (I am using a different computer to send this). Any suggestions?

:)

 

30-60 second black screen with cursor on every boot

Thanks for the links Parth, unfortunately neither of them helped.

The first link only mentions a black screen during windows installation, which I had, but fixed by unplugging my TV from my second display port. That is not the case with the black screen I get on boot.

The second link has information on disabling the on-board graphics chip, I also did that but it didn't fix my problem.

I'm hoping to find the cause of the multiple attempts to load dxgkrnl.sys during bootup after it's already been loaded because, unless that's something fairly common, I think it could be causing the black screen.

 

Windows Startup with Black Screen only a arrow with blinking

Hi,

We suggest that you check Andrew_HP's reply on Nov. 11, 2014 on the link below and see if it works for you:

Windows 10 Black screen on bootup.

Regards.

 

Have you tried physically disconnecting all but the boot drive?

 

I had to go out of town for the weekend so that will surely be the next thing i try. Just not convinced as the F1 resume has worked for two years until i did the latest win 10 updates, but at least without the drive there it will have to do something else other than show the message about pressing F1 to resume!