Adds a new subkey or entry to the registry.
Syntax
reg add <KeyName> [{/v ValueName | /ve}] [/t DataType] [/s Separator] [/d Data] [/f]
For examples of how to use this command, see Examples.
Parameters
| Parameter | Description |
|---|---|
| <KeyName> | Specifies the full path of the subkey or entry to be added. 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:
If a remote computer is specified, valid root keys are: HKLM and HKU. |
| /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:
|
| /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. |
| /? | Displays help for reg add at the command prompt. |
Remarks
- Subtrees cannot be added with this operation. This version of reg does not ask for confirmation when adding a subkey.
- The following table lists the return values for the reg add operation.
| Value | Description |
|---|---|
| 0 | Success |
| 1 | Failure |
- For the REG_EXPAND_SZ key type, use the caret symbol ( ^ ) with %” inside the /d parameter
Examples
To add the key HKLM\Software\MyCo on remote computer ABC, type:
REG ADD \\ABC\HKLM\Software\MyCo
To add a registry entry to HKLM\Software\MyCo with a value named Data, type REG_BINARY, and data of fe340ead, use command:
REG ADD HKLM\Software\MyCo /v Data /t REG_BINARY /d fe340ead
To add a multivalued registry entry to HKLM\Software\MyCo with a value name of MRU of type REG_MULTI_SZ and data of fax\0mail\0\0, type:
REG ADD HKLM\Software\MyCo /v MRU /t REG_MULTI_SZ /d fax\0mail\0\0
To add an expanded registry entry to HKLM\Software\MyCo with a value name of Path of type REG_EXPAND_SZ and data of %systemroot%, type:
REG ADD HKLM\Software\MyCo /v Path /t REG_EXPAND_SZ /d ^%systemroot^%
Use Reg file
Create a file with extension name .reg, edit it by any text editor:
- First line: Windows Registry Editor Version 5.00
- Then type the hive, if the hive does not exist, the registry will create one: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System]
- Value name, type, and value data : “test”=dword:00000001
The whole file will looks like:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System] “test”=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\frank] “test”=dword:00000001
Save the file in the format of name.reg . then double click the file. Done!