ran autoruns agaiin with filter and sysmon.exe showed up in it's file and so deleted, No black box during startup. Guess all is well. Will try uninstalling Net 4.6 if further problems down the road...

yes came here after more Google searching for Windows 10 forums as not much traffic on Beeping compared to here. Went to site you posted and did verifier, clean, and repair for 4.6 and it still...

thanks, I found sysmon.exe in "C:\ProgramData\242466\sysmon.exe" /startup by using aurorun for sysmon.exe When I clicked the properties I got the following
DESCRIPTION Microsoft .NET Services...

Running Win 10 on a HP Envy and upon startup everything normal, then icons appear on desktop, then a 5 inch black square in upper right of screen and this hangs for about thirty seconds then...