Is could not validate source error 254 disk utility annoying you? No need to worry any more because here is the right solution for resolving this issue. You must know the popularity of the Mac OS X among the people around the world. It provides various features however despite of the different functionalities there is certain cases wherein users confront disk utility failure and they encounter unexpected message as could not validate source error 254 disk utility. The major cause behind this error is due to corrupt ISO, similarly any of these factors such as registry file corruption, wrong Mac file system, software incompatibility could create this erroneous condition. Anyway whatever the reason behind this error but the point is what are the possible ways to fix could not validate source error 254 disk utility because this error makes your Mac stored data inaccessible. Due to this error your running application closes automatically and it affects overall your PC performance. Since disk utility program failed to repair damaged ISO therefore formatting the hard drive is the only option to resolve this problem, however format will remove the all saved data. No duplicate copy of file with you will create the situation more complicated, So in this critical circumstance Mac data recovery comes for reuse. It recovers every kind of lost data from Mac effectively.