Issue with epic installer, can't seem to solve it? Please help?!

I got this error in epic / unreal engine installer when I click this button, INSTALL NOW it always gives me this error code no matter if I run the installer in admin mode or anything like that, I have done the following (by done the following I specifically am trying to indicate that I have 100% installed .net as it said): EOS-ERR-1603 - Epic Games Support and it still gives me this error even after restarting my computer. How can I resolve this issue?