Resolved Windows 10 update version 1511

i have had a big problem since i got Update for Windows 10 Version 1511 for x64-based Systems (KB3140741).
My Desktop is an Acer Aspire XC600. I have nevere had any problems with it since i bought it just on 2 years ago until the 30th of March 2016 when i got my Windows 10 update for version 1511.
I now get a pitch black screen on startup & it doesn't seem as if the PC is going to boot but CPU fan running, Power light is on & HDD light flashes now & then & screen comes back on & displays the screen top enter my Microsoft Windows Password. I have checks on all hardware & the software used as well as the drivers & founds no errors.
If anyone can help on how to fix this problem it would be a great help & appreciated i even went backwards on my updates & Uninstalled the update & it stopped until windows updates downloaded & installed it again. thanks to all in advance for your help.

 

I found out that one of my memory/Ram sticks was moving while it was in the bank on the MOBO. So it was the MOBO that was causing the error as when the memory/ram was touched or the PC Case was moved a bit the screen would disppear.(Go Black). Some part of it i thought was the build that i had installed but i installed it on another PC & it ran as smooth as a babys bottom.