What is error 2502,& 2503 when installing Quicktime and gaming related drivers/software

Windows 8 has just been re-installed so I thought that would fix the problem. I had purchased a new XFX graphics card,,, free games. I couldn't download or play the games because of errors 2502 and 2503. After this new os installation, I thought this would fix any problems,,,but,, Quicktime won't install and I absolutely cannot find an answer for this,,,Please HELP!!!! direction, anything. -Thanks, JoeOutHere