reg delete HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\IrisService /f & shutdown -r -t 0.Go to 'File' and choose 'Run new task'.Choose ‘More details’ at the bottom of Task Manager to expand Task Manager.Use CTRL-ALT-DEL and choose to open the Task Manager.The following should fix these if you were experiencing anything similar when you updated to build 22000.176: Microsoft has already updated the blog post explaining that it was a server-side issue responsible for these bugs. Please install an app or, if one is already installed, create an association in the Default Apps Settings page.” Some have reported coming across this message when trying to launch an application as well: “This file does not have an app associated with it for performing this action.