Verify in DOS

Verify
Most PC's do not have ECC memory (Error Correction Code) or memory with parity so the verify command is important. What it does is verify that the data in memory is the same as what is written to disk. However it does not check that the data in memory is the same as what is read from disk. So it does not insure that the disk is read correctly but that it is written correctly. This affords some additional security and will also prevent writes to bad sectors.

Verify is used precisely the same way as break except that it cannot be used in config.sys.

Tip

Use VERIFY ON as the first command in autoexec.bat so write verification is enabled as early as possible each time you boot.