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CmdRegedit Command Line Switches

Although it is not mentioned in the documentation, Windows Registry Editor has a number of options for manipulating Windows registry via command line. Here is the syntax and usage examples.

Registry Exporting

  • To export all registry contens to the file c:\all.reg, use the /e switch as follows:
    regedit /E c:\all.reg
  • To export a specific registry key to the file file.reg, use the /e switch as follows:
    regedit /E file.reg <registry_key>, for example
    regedit /E c:\hklm_run.reg "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run" will export the list of startup programs from the "Run" section.

Registry Importing

  • Merge or import file.reg to a Registry:
    regedit file.reg
  • Create and replace an existing registry from a file file.reg:
    regedit /C file.reg

Registry Deleting

Delete a registry key

  • To delete a specific registry key from the registry:

    Windows 10, 8, 7 You can create the .reg file and specify the minus sign before the key name to delete, here is the example file contents of c:\del.reg:

    Windows Registry Editor Version 5.00


    Now launch the Regedit using regedit c:\del.reg, and the key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System will be removed from the system registry.

    Windows 95,98,ME Regedit has the /D switch, use it as follows:
    regedit /D <registry_key>, for example
    regedit /D "HKEY_CLASSES_ROOT\CLSID\{834261E1-DD97-4177-853B-C907E5D5BD6E}" will delete the entry of Trojan CWS

Delete a registry value

  • To delete a specific registry value, specify the minus sign instead of a value in the .reg file:

    Windows Registry Editor Version 5.00


Other Switches

  • For silent execution of the Regedit program, use the /s parameter. If /s is specified, Regedit will suppress any informational dialog boxes and operate quietly, without asking for confirmation.
  • Windows 95,98,ME There are several command line switches for specifying location of User.dat (/L) and user name (/R):
    regedit /L:c:\windows\user.dat /e c:\test.reg
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