A boot CD is CD surrounding operating system files that computer can use as a alternate for its usual operating system. Swapping file such as Autoexec.bat through use of boot CD needs that appreciate and exploit text based command language of DOS. This is rather straight forward process that can be done in around 10 minutes.

Instructions:

• Put in boot CD into computer.

• Regenerate PC and push some enter to wader from CD.

• situate in disk surrounding autoexec.bat file.

• Kind in "x:" and push "go into," replacing "x" with letter of drive containing disk with fresh autoexec.bat file.

• Type in "copy autoexec.bat x:\directoryname" and push "Enter," changing "x:\directoryname" with path to old autoexec.bat file. For ex. if aged autoexec.bat file was in "Windows" directory on "C" drive, would type "copy autoexec.bat c:\windows" and push "Enter."