Error R-23... Windows SP1?

I have waited 6hrs for UE4 Engine to download through Epic Launcher and reached 100% installation only to be told by error message that the necessary prerequisites have failed to install. Error Code R-23.

My PC specs.

                 >8gb DDR3.

                  >Intel(R) Pentium(R) CPU G2130 @ 3.20GHz  

                  > 64-bit OS Windows 7 Ultimate

                  >Gigabyte NVidea GeForce GTX 750 2GB GDDR5

Hi 21builds,

I’m sorry that you are having an issue with the Epic Games Launcher. In order for us to offer the best support, we have recently modified the process for how Epic Games can help troubleshoot your Launcher issue. Please visit for technical support, here you can find information and solutions for common issues, as well as a contact form if you still need additional assistance. Thanks!