In Windows 11, you'll notice a shorter context menu when right-clicking most apps, folders, and other things. It looks beautiful and elegant, but some of your favorite commands and shortcuts may have been relocated out of the primary context menu, especially if they're for third-party apps.
The explorer.exe process is the user shell for Windows, and is used by such items as the desktop, File Explorer, Start menu, notification area, and taskbar. Restarting the explorer.exe process is to stop and start it to effectively refresh explorer.exe. When the explorer.exe process has been stopped (aka: "end task"), you will see a blank black desktop with your mouse pointer showing until explorer.exe has been started again.
The default method of opening unknown files is to see a list of known applications already installed on our PC. Unfortunately we usually do not know which is the most appropriate program to open a certain file, in other cases notepad is sufficient, as in the case of text or backup files. For this reason it is convenient to have on the contextual menu, that is the one that opens when you click the right mouse button, the item "Open with Notepad"
If you want to open a file type not registered with Notepad, you…