Reinstalling Windows is disruptive. Run these built-in Command Prompt repairs in the right order to fix disk, system files, ...
Many a time, the images you download including GIF files get corrupted. If not worse, it usually happens when the metadata of the image is corrupted, and a Windows PC cannot read it properly. Using ...
RedHat should have a file on their FTP (or wherever you got the ISO from) called md5sums, in it will be a checksum for the file, run md5sum on the ISO you have and see if it matches.
Just about every computer user has encountered a problem opening a program or file. Sometimes a simple reboot will correct this, but corrupt files often prove resistant to this fail safe. A corrupted ...