How to Add or Delete a Registy entry by Command Line Script

If you need to add a registry entry to a Windows PC most often techs will simply export the key and entries they want and then use the REGEDIT /S command to push that entry onto another PC.
For example if you want to disable the Cortana bar (but not Windows Search), you save the following into a file named DISABLE-CORTANA.REG
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindowsWindows Search]
"AllowCortana"=dword:00000000
Then you simply put that file on one of your servers and push it out to your PC’s using something like:
regedit /s "\<Your-Server><Your-Share>Scriptsdisable-cortana.reg"

HOW TO ADD A REGISTRY KEY USING COMMAND LINE SCRIPT

if you have a simple registry change you want to make you can avoid the .REG file and simply use REG ADD command to make your change.  For instance:
reg add "HKLMSOFTWAREPoliciesMicrosoftWindowsWindows Search" /v AllowCortana /t REG_DWORD /d 1 /f
The switches mean:
/v <ValueName> Specifies the name of the registry entry to be added under the specified subkey.
/ve Specifies that the registry entry that is added to the registry has a null value.
/t <Type> Specifies the type for the registry entry. Type must be one of the following:
REG_SZ
REG_MULTI_SZ
REG_DWORD_BIG_ENDIAN
REG_DWORD
REG_BINARY
REG_DWORD_LITTLE_ENDIAN
REG_LINK
REG_FULL_RESOURCE_DESCRIPTOR
REG_EXPAND_SZ
/s <Separator> Specifies the character to be used to separate multiple instances of data when the REG_MULTI_SZ data type is specified and more than one entry needs to be listed. If not specified, the default separator is .
/d <Data> Specifies the data for the new registry entry.
/f Adds the registry entry without prompting for confirmation.
Here are some more examples you may find useful:
  • REG ADD HKCUSoftwareSS64 /v Sample /d "some test data"
  • reg  add  HKEY_CURRENT_USEREnvironment  /v  userpath /t  REG_EXPAND_SZ  /d  C:Windows
  • REG ADD HKLMSoftwareMyCo /v Data /t REG_BINARY /d fe340ea
  • reg add HKLMSoftwaresav /v test /t REG_SZ /d ""%userprofile%""

HOW TO ADD A REGISTRY KEY USING COMMAND LINE SCRIPT:

Deleting a registry key using command line is simple, using the syntax:
Reg delete <KeyName> [{/v ValueName | /ve | /va}] [/f]
The switches for REG DELETE are:
<KeyName> Specifies the full path of the subkey or entry to be deleted. To specify a remote computer, include the computer name (in the format \ComputerName) as part of the KeyName. Omitting \ComputerName causes the operation to default to the local computer. The KeyName must include a valid root key. Valid root keys for the local computer are: HKLM, HKCU, HKCR, HKU, and HKCC. If a remote computer is specified, valid root keys are: HKLM and HKU.
/v <ValueName> Deletes a specific entry under the subkey. If no entry is specified, then all entries and subkeys under the subkey will be deleted.
/ve Specifies that only entries that have no value will be deleted.
/va Deletes all entries under the specified subkey. Subkeys under the specified subkey are not deleted.
/f Deletes the existing registry subkey or entry without asking for confirmation.
For example:
reg delete "HKLMSOFTWAREPoliciesMicrosoftWindowsWindows Search" /f

DETAILS ON ALL THE REG COMMANDS:

Here are all of the REG commands in Windows 10, with links to their respective Microsoft support pages:

One thought on “How to Add or Delete a Registy entry by Command Line Script

  • March 8, 2019 at 21:29
    Permalink

    Wonderful work! This is the type of information that should be shared around the web. Shame on Google for not positioning this post higher! Come on over and visit my site . Thanks =)

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *