To open a Powershell widow from any folder in Windows Explorer use the registry script below
Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\Directory\shell\powershell] @="PowerShell Here" [HKEY_CLASSES_ROOT\Directory\shell\powershell\command] @="C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe -NoExit -Command Set-Location -LiteralPath '%L'"
Check the installation path in the last line matches your system.
“Let yourself be open and life will be easier. A spoon of salt in a glass of water makes the water undrinkable. A spoon of salt in a lake is almost unnoticed” - Buddha
Related:
Set-Location - Set the current working location.
Powershell Prompt Here - PowerToy from Scott Hanselman
Open Command Window - Various Shell options, André Burgaud