When you right-click on a .mp4 file, click Properties, and click the Change button, iTunes may not be listed in the Open With dialog. It may not be listed in the Open With submenu as well.Read more
open with
“How do you want to open this file” Pops Up at Startup
Symptom: Every time you log in to your user account, the “How do you want to open this file?” (aka, the “Open with” dialog) dialog may appear.

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If you select Notepad from the list and click OK, it may open a log file that has contents similar to the following:Read more
[Fix] Cannot Add a Program to Open with List in Windows
When you right-click on a file, select “Open with”, click “choose another app” and select a program using the Browse dialog, the program may fail to appear in the “Open With” dialog.
It may appear as if nothing happened after you selected the program in the browse dialog — i.e., the Open with dialog simply ignores your selection. This is a bug that exists since the Windows XP era (at least) and remains in Windows 10 as well. This article shows how to fix the Open with problem.Read more
Remove Unwanted Programs from Open with menu in Windows
When right-clicking a file, the Open with menu appears, showing a list of programs to open the file with. In the Open with dialog, when you browse to choose a program to open a file, the program entry is added to the Open with menu and the Open with dialog. Sometimes, you may end up … Read more
Notepad Appears Twice in “Open With” Menu and Dialog
When you right-click on a text file and click Open with, the Notepad program appears twice in the Open with menu. Also, if you click “Choose another app”, the Open with “dialog” that appears, shows Notepad twice.


This post tells you how to resolve the issue.Read more