App Store wa Mac OS X dè applaikeiçion für applaikeiçion dè instoleiçion. Applaikeiçion dè instoleiçion wa rileiten tu Apple ID lingken tu. If lingken Apple ID wa not du wörking, keyi rimuv orijinol Apple ID bai metods folowen: 1. * Opèn "Terminal" 2. * taip "cd /Applications" 3. * "cd" tu direktori storing applaikeiçion. F.i. "cd Xcode.app" 4. * "cd" tu "Contents" 5. * taip "rm -rf _MASReceipt"