Registry Edit

REG ADD 

REG DELETE 

 

 

 

 

 

Example of how to change your homepage: 

 

REG ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d http://my.yahoo.com /f 

 

Disable AutoPlay (XP) 

REG ADD "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v NoDriveTypeAutoRun /t REG_DWORD /d 255 /f 

 

REG ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LanguagePack" /v UniScribe /t REG_DWORD /d 2 

 

Meltdown registry  

REG ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat" /v cadca5fe-87d3-4b96-b7fb-a231484277cc /t REG_DWORD /d 0x00000000 

 

 

REG Operation [Parameter List] 

 

  Operation  [ QUERY   | ADD    | DELETE  | COPY    | 

               SAVE    | LOAD   | UNLOAD  | RESTORE | 

               COMPARE | EXPORT | IMPORT  | FLAGS ] 

 

 

Return Code: (Except for REG COMPARE) 

 

  0 - Successful 

  1 - Failed 

 

For help on a specific operation type: 

 

 

REG ADD KeyName [/v ValueName | /ve] [/t Type] [/s Separator] [/d Data] [/f] 

 

  KeyName  [\\Machine\]FullKey 

           Machine  Name of remote machine - omitting defaults to the 

                    current machine. Only HKLM and HKU are available on remote 

                    machines. 

           FullKey  ROOTKEY\SubKey 

           ROOTKEY  [ HKLM | HKCU | HKCR | HKU | HKCC ] 

           SubKey   The full name of a registry key under the selected ROOTKEY. 

 

  /v       The value name, under the selected Key, to add. 

 

  /ve      adds an empty value name (Default) for the key. 

 

  /t       RegKey data types 

           [ REG_SZ    | REG_MULTI_SZ | REG_EXPAND_SZ | 

             REG_DWORD | REG_QWORD    | REG_BINARY    | REG_NONE ] 

           If omitted, REG_SZ is assumed. 

 

  /s       Specify one character that you use as the separator in your data 

           string for REG_MULTI_SZ. If omitted, use "\0" as the separator. 

 

  /d       The data to assign to the registry ValueName being added. 

 

  /f       Force overwriting the existing registry entry without prompt. 

 

Examples: 

 

  REG ADD \\ABC\HKLM\Software\MyCo 

    Adds a key HKLM\Software\MyCo on remote machine ABC 

 

  REG ADD HKLM\Software\MyCo /v Data /t REG_BINARY /d fe340ead 

    Adds a value (name: Data, type: REG_BINARY, data: fe340ead) 

 

  REG ADD HKLM\Software\MyCo /v MRU /t REG_MULTI_SZ /d fax\0mail 

    Adds a value (name: MRU, type: REG_MULTI_SZ, data: fax\0mail\0\0) 

 

  REG ADD HKLM\Software\MyCo /v Path /t REG_EXPAND_SZ /d ^%systemroot^% 

    Adds a value (name: Path, type: REG_EXPAND_SZ, data: %systemroot%) 

    Notice:  Use the caret symbol ( ^ ) inside the expand string 

 

 

 

REG DELETE KeyName [/v ValueName | /ve | /va] [/f] 

 

  KeyName    [\\Machine\]FullKey 

    Machine  Name of remote machine - omitting defaults to the current machine. 

             Only HKLM and HKU are available on remote machines. 

    FullKey  ROOTKEY\SubKey 

    ROOTKEY  [ HKLM | HKCU | HKCR | HKU | HKCC ] 

    SubKey   The full name of a registry key under the selected ROOTKEY. 

 

  ValueName  The value name, under the selected Key, to delete. 

             When omitted, all subkeys and values under the Key are deleted. 

 

  /ve        delete the value of empty value name (Default). 

 

  /va        delete all values under this key. 

 

  /f         Forces the deletion without prompt. 

 

Examples: 

 

  REG DELETE HKLM\Software\MyCo\MyApp\Timeout 

    Deletes the registry key Timeout and its all subkeys and values 

 

  REG DELETE \\ZODIAC\HKLM\Software\MyCo /v MTU 

    Deletes the registry value MTU under MyCo on ZODIAC