How can I delete a registry value/key from the command line?

A. A. Using the Windows NT Resource Kit Supplement 2 utility REG.EXE you can delete a registry value from the command line or batch file, e.g.

reg delete HKLMSoftwaretest

Would delete the HKEY_LOCAL_MACHINESoftwaretest value. When you enter the command you will be prompted if you really want to delete, enter Y. To avoid the confirmation add /force to the command, e.g.

reg delete HKLMSoftwaretest /force

A full list of the codes to be used with REG DELETE are as follows:

To delete a entry on a remote machine add the name of the machine, \, e.g.

reg delete HKLMSoftwaretest \johnpc