Abort, Retry, Fail? - Usually you will get this error message if you are trying to read a disk that is not readable of if no disk is in there

Access denied - Usually meaning the file has a attribute on it *TIP* if you need to delete the file just deltree FILE

Bad command or file name - Usually this is when you miss type a command or if DOS does not know the command.

Bad or missing command interpreter - DOS cannot locate the Command.com a important file that holds all of DOS's needed information, you will need to recopy it also there is a chance you could possible have a Virus

Divide overflow - Program has attempted to divide something by 0.

Drive not ready error - Disk in the drive is not readable, such as a disk not being in the disk drive.

Duplicate file name or file not found - When attempting to rename a file the file does not exist or there is already a file with that name.

File cannot be copied onto itself - An attempt to copy a file could not be completed because the file already exists or same source and destination.

File creation error - Directory could be full because of the DOS limitation of files in one directory the file could also already exist or the file was not copied correctly

File not found - Meaning that in the directory that you searched does not have that certain file or there are no files in the directory.

General Failure - Something bad has occurred and DOS not know what to say so it just gives you this error if this is giving when try reading the Hard drive you may need to format the hard drive or it possible even could be bad

Internal stack overflow - DOS's internal storage areas are full if you need to go into your config.sys and increase the STACKS=0,0

Invalid directory - Directory is invalid or does not exist in the directory you are currently in.

Invalid drive specification - Drive does not exist on the computer or cannot be found.

Invalid file name or file not found - DOS cannot find the file specified in the current directory or the file has a invalid character in it.

Invalid media, track 0 bad or unusable - Format command cannot format the specified disk or the disk capacity is invalid, or bad disk.

Invalid number of parameters - When the command was typed something was left out that DOS needed by the command, mistyped the command. or put a space where one was not needed.

Invalid parameter - Typed a command correctly but specified the incorrect parameter such as format /z

Invalid Switch - The wrong slash was typed such as cd/ when it is supposed to be cd\.

Non-System disk or disk error - When booting up the computer this error will usually occur when there is a floppy disk in the computer that is not bootable if there is no disk inside the computer this could be an indication of a unrecognized hard drive, un formatted hard drive, or hard drive with missing system files.

Not ready, reading drive X - Attempted to read a disk that is not readable or there is no disk in that drive.

Write fault error - Tried to reroute text to a device that is not connected or is not valid or not hooked up.

Write protect - Tried to write to a disk that is write protected