SYNOPSIS
    Retrieves value names and value data for a specified registry key or optionally, a specific value.
SYNTAX
    Get-RegistryKey [-Key] <String> [[-Value] <String>] [[-SID] <String>] [-ReturnEmptyKeyIfExists] [-DoNotExpandEnvironmentNames] [[-ContinueOnError] <Boolean>] [<CommonParameters>]
DESCRIPTION
    Retrieves value names and value data for a specified registry key or optionally, a specific value.
    If the registry key does not exist or contain any values, the function will return $null by default. To test for existence of a registry key path, use built-in Test-Path cmdlet.
PARAMETERS
    -Key <String>
        Path of the registry key.
    -Value <String>
        Value to retrieve (optional).
    -SID <String>
        The security identifier (SID) for a user. Specifying this parameter will convert a HKEY_CURRENT_USER registry key to the HKEY_USERS\$SID format.
        Specify this parameter from the Invoke-HKCURegistrySettingsForAllUsers function to read/edit HKCU registry settings for all users on the system.
    -ReturnEmptyKeyIfExists [<SwitchParameter>]
        Return the registry key if it exists but it has no property/value pairs underneath it. Default is: $false.
    -DoNotExpandEnvironmentNames [<SwitchParameter>]
        Return unexpanded REG_EXPAND_SZ values. Default is: $false.
    -ContinueOnError <Boolean>
        Continue if an error is encountered. Default is: $true.
    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer, PipelineVariable, and OutVariable. For more information, see 
        about_CommonParameters (https:/go.microsoft.com/fwlink/?LinkID=113216). 
    -------------------------- EXAMPLE 1 --------------------------
    PS C:\>Get-RegistryKey -Key 'HKLM:SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{1AD147D0-BE0E-3D6C-AC11-64F6DC4163F1}'
    -------------------------- EXAMPLE 2 --------------------------
    PS C:\>Get-RegistryKey -Key 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\iexplore.exe'
    -------------------------- EXAMPLE 3 --------------------------
    PS C:\>Get-RegistryKey -Key 'HKLM:Software\Wow6432Node\Microsoft\Microsoft SQL Server Compact Edition\v3.5' -Value 'Version'
    -------------------------- EXAMPLE 4 --------------------------
    PS C:\>Get-RegistryKey -Key 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment' -Value 'Path' -DoNotExpandEnvironmentNames
    Returns %ProgramFiles%\Java instead of C:\Program Files\Java
    -------------------------- EXAMPLE 5 --------------------------
    PS C:\>Get-RegistryKey -Key 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Example' -Value '(Default)'
REMARKS
    To see the examples, type: "get-help Get-RegistryKey -examples".
    For more information, type: "get-help Get-RegistryKey -detailed".
    For technical information, type: "get-help Get-RegistryKey -full".
    For online help, type: "get-help Get-RegistryKey -online"