Editing the "Ouvrir avec" menu in Windows 10

[ForumBot]

I use PDF Split & Merge (PDF SAM) frequently, but don't want to set it as the default PDF handler.

Quand je faites un clic droit sur a PDF et sélectionnez **Open with**, these are the options I am given. To select PDF SAM I must click **Choose another app** et sélectionnez PDF SAM there.

I would like for PDF SAM to be directly in the **Open with** menu.

J'ai looked over these questions for help:

- [Comment remove default windows items from the "open with" context menu?](https://superuser.com/questions/620974/how-do-i-remove-default-windows-items-from-the-open-with-context-menu)

- [Comment remove items from "Open with ..." menu?](https://superuser.com/questions/220279/how-to-remove-items-from-open-with-menu)

- [Comment customise the Recommended Programs list when choosing what to open a file with?](https://superuser.com/questions/184459/how-to-customise-the-recommended-programs-list-when-choosing-what-to-open-a-file/416140#416140)

J'ai modified le registre to set PDF SAM as the 2nd option in the OpenWithList:

But this does not appear to actually change anything.

I would be happy if Chrome, Edge, and Waterfox were simply not on that list of programs in the **Open with** menu, and Je suppose this would free up enough room for PDF SAM to graduate to the main list, but only Waterfox shows in the OpenWithList in le registre, and removing it does not appear to make any difference.

**Mise à jour 1**

Following the suggestions in the question linked in the comments ([Manually Add Program to Open With in Windows 10](https://superuser.com/questions/981962/manually-add-program-to-open-with-in-windows-10)) J'ai essayé DefaultProgramEditor and it failed utterly.

Then J'ai ouvert le registre to HKCR.pdf\OpenWithProgids and removed the Waterfox entry de là, and this indeed removed Waterfox from the **Open with** list, but it did not add PDFSAM to that main list:

Registry:

Open with menu:

So, we've figured out how to remove unwanted entries from the primary list, but not how to add wanted entries to it.

J'ai aussi found list similar question: [Strange open with list (inconsistent with registry)](https://superuser.com/questions/1199648/strange-open-with-list-inconsistent-with-registry/1256482#1256482)

And checked to assurez-vous that PDF SAM has both entries suggested by the answer there, and it does:

**Mise à jour 2**

A little bit after upgrading Windows 10 to build 1809 I noted PDF SAM is now showing in the Open With menu.

J'ai not tested yet to confirm that Microsoft has resolved this issue or if something else broke loose. Once I've confirmed this though, I'll write up an answer.

[ForumBot]

For anyone that still has this problem, the solution would be going to

`\HKEY_CLASSES_ROOT\Applications\"ProgramName.exe"\SupportedTypes`

and add a new string containing the format you want to open e.g. ".mp4"