Uninstall mo yun luma, restart your pc/laptop. Install updated version Winrar http://filehippo.com/search?q=winrar [Choose your bit] or 7zip http://filehippo.com/download_7zip/. Then try it again.
sir. corrupted parin sa winrar @ 7zip
lecture 1,2,21,26. tut ang dumagdag. hehe
btw thank's for winwrar 32-64bit updated version .