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_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Windows 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>\Scripts\disable-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 "HKLM\SOFTWARE\Policies\Microsoft\Windows\Windows 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 \0. |
| /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 HKCU\Software\SS64 /v Sample /d "some test data"reg add HKEY_CURRENT_USER\Environment /v userpath /t REG_EXPAND_SZ /d C:\WindowsREG ADD HKLM\Software\MyCo /v Data /t REG_BINARY /d fe340eareg add HKLM\Software\sav /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 "HKLM\SOFTWARE\Policies\Microsoft\Windows\Windows 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:
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