PowerShell: Locking Drive Content

This will not hide drive letters but prohibit access to drive content. You need administrative privileges to set this setting.

function Hide-DriveContent {
    param($DriveLetter)
 
    $key = @{
        Path = 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer'
        Name = 'NoViewOnDrive'
    } 
 
 
    if ($DriveLetter -eq $null) {
        Remove-ItemProperty @key
    } else {
        $mask = 0
        $DriveLetter |
            ForEach-Object { $_.toUpper()[0] } |
            Sort-Object |
            ForEach-Object { $mask += [Math]::Pow(2,(([Byte]$_) -65)) }
 
        Set-ItemProperty @key -Value $mask -type DWORD
    }
}

Use the function like so:

PS> Hide-DriveContent D,Z     # prohibits access to drives D: and Z:
PS> Hide-DriveContent   # removes all restrictions

Log off and on again, or kill explorer.exe for changes to take effect.

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