Many python developers think of registry keys as if they were python keys in a dictionary which is not the case. The windows registry is broken down into the following components:
This is the top level of the registry. They all begin with HKEY. - HKEY_CLASSES_ROOT (HKCR) - HKEY_CURRENT_USER(HKCU) - HKEY_LOCAL MACHINE (HKLM) - HKEY_USER (HKU) - HKEY_CURRENT_CONFIG
Hives contain keys. These are basically the folders beneath the hives. They can contain any number of subkeys.
Values or Entries are the name/data pairs beneath the keys and subkeys. All keys have a default name/data pair. It is usually "(Default)"="(value not set)". The actual value for the name and the date is Null. The registry editor will display "(Default)" and "(value not set)".
The following example is taken from the windows startup portion of the registry:
`
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"RTHDVCPL"="\"C:\\Program Files\\Realtek\\Audio\\HDA\\RtkNGUI64.exe\" -s"
"NvBackend"="\"C:\\Program Files (x86)\\NVIDIA Corporation\\Update Core\\NvBackend.exe\""
"BTMTrayAgent"="rundll32.exe \"C:\\Program Files (x86)\\Intel\\Bluetooth\\btmshellex.dll\",TrayApp"
`
In this example these are the values for each:
Hive: HKEY_LOCAL_MACHINE
Key and subkeys: SOFTWAREMicrosoftWindowsCurrentVersionRun
salt.states.reg.
absent
(name, vname=None)¶Ensure a registry value is removed. To remove a key use key_absent.
Example:
'HKEY_CURRENT_USER\SOFTWARE\Salt\version':
reg.absent
In the above example the path is interpreted as follows:
- HKEY_CURRENT_USER
is the hive
- SOFTWARE\Salt
is the key
- version
is the value name
So the value version
will be deleted from the SOFTWARE\Salt
key in
the HKEY_CURRENT_USER
hive.
salt.states.reg.
key_absent
(name, force=False)¶New in version 2015.5.4.
Ensure a registry key is removed. This will remove a key and all value entries it contains. It will fail if the key contains subkeys.
Parameters: |
|
---|---|
Returns: | Returns a dictionary showing the results of the registry operation. |
Return type: |
The following example will delete the SOFTWARE\Salt
key and all subkeys
under the HKEY_CURRENT_USER
hive.
Example:
'HKEY_CURRENT_USER\SOFTWARE\Salt':
reg.key_absent:
- force: True
In the above example the path is interpreted as follows:
- HKEY_CURRENT_USER
is the hive
- SOFTWARE\Salt
is the key
salt.states.reg.
present
(name, value=None, vname=None, vdata=None, vtype='REG_SZ', reflection=True)¶Ensure a registry key or value is present.
Parameters: |
|
---|---|
Returns: | Returns a dictionary showing the results of the registry operation. |
Return type: |
The following example will set the (Default)
value for the
SOFTWARE\Salt
key in the HKEY_CURRENT_USER
hive to 0.15.3
. The
value will not be reflected in Wow6432Node
:
Example:
HKEY_CURRENT_USER\SOFTWARE\Salt:
reg.present:
- vdata: 0.15.3
- reflection: False
The following example will set the value for the version
entry under the
SOFTWARE\Salt
key in the HKEY_CURRENT_USER
hive to 0.15.3
. The
value will be reflected in Wow6432Node
:
Example:
HKEY_CURRENT_USER\SOFTWARE\Salt:
reg.present:
- vname: version
- vdata: 0.15.3
In the above example the path is interpreted as follows:
- HKEY_CURRENT_USER
is the hive
- SOFTWARE\Salt
is the key
- vname
is the value name ('version') that will be created under the key
- vdata
is the data that will be assigned to 'version'