Error 2502 & 2503 Windows 8.1 x64

Yep that helped. Finally! Thanks a lot! though it was tough to go through the google-translated instructions. still had to potter around until i got it right.

basically as described:

  • go to HKEY_CLASSES_ROOT\Msi.Package\shell
  • right click on shell, create a new section called “RunAs”
  • in the default key of “RunAs” enter “Run as administrator” - without the quotes - as value
  • now in the newly created “RunAs” section you have to create a new subsection (right click - new section) and call that one “command”
  • the following is to be typed in as value in the default key of “command”:

msiexec /i “%1”

watch the spaces between, it cost me some time to figuere out that there has to be no space between % and 1 and before i… but just copy it from here, and you should be fine.
now rightclicking on the epic games installer will show a new section in the menue called “Run as administrator” which now should do exactly this.