Create the registry keys necessary to get 'Open PowerShell here' in Windows Explorer context menus

CreatePowerShellHereKeys.ps1

Set-StrictMode -Version Latest

# since this won't work without running with admin privs, check for those first
$wid=[System.Security.Principal.WindowsIdentity]::GetCurrent()
$prp=new-object System.Security.Principal.WindowsPrincipal($wid)
$adm=[System.Security.Principal.WindowsBuiltInRole]::Administrator
$IsAdmin=$prp.IsInRole($adm)

if ($IsAdmin -eq $false)
{
    throw 'this must be run from an elevated PowerShell instance'
}

$commandToSet = (gcm powershell).path + " -NoExit -Command Set-Location -LiteralPath '%V'"

$keyLocationsToSet = (
	'HKEY_CLASSES_ROOT\Directory\Background\shell\powershell',  # this puts it in the context menu for Windows Explorer background
	'HKEY_CLASSES_ROOT\Directory\shell\powershell',             # this puts it in the context menu for Windows Explorer folders
	'HKEY_CLASSES_ROOT\Drive\shell\powershell'                  # this puts it in the context menu for Windows Explorer drive icons
)


foreach ($key in $keyLocationsToSet)
{
	write-host "Setting command to run of $commandToSet in location $key"
	reg.exe add $key /f /ve /d "Open PowerShell Window Here"
	reg.exe add $key /f /v NoWorkingDirectory
	reg.exe add "$key\command" /f /ve /d $commandToSet
}