Windows 10: Windows 10 - change default application back to Pick an application for certain filetype...

Hi all,I saw the thread was locked so could not post a solution. I opened regedit and searched for .abc, then deleted everywhere I say .abc, including folders named .abc. Now I can see Pick an application in file properties.Hope this helps, Please be careful in knowing what you are deleting. Always backup registory before chainging anything.Thanks

:)

 

Unable to change default app by protocol or filetype.

Hi, just considering what is shown in the Open With options, for example:



Here you can see Sumatra is my default reader.





Here you can see Sumatra and Chrome are added to the Open With list, + Edge, a system default.

The choice presented to you for .fdf, .pdfxml, .pdx for example, should depend on whether Bluebeam has correctly registered itself in the appropriate place as capable of handling those extensions.

So, for example, is Bluebeam shown in the Open With list for those extensions?

It is not enough that a program is installed that is potentially capable of handling a file type (e.g. via an Open dialogue) but that it be so registered. That is up to the author to specify.

Application Registration - Windows applications | Microsoft Docs





This opens in Sumatra, my default.

Unfortunately this option in the Control Panel now opens in Settings:



and does not allow you to do what it claims.

 

Unable to change default app by protocol or filetype.

Hi, I don't have Acrobat installed. With Sumatra as my default pdf reader, that hyperlink to a pdf docoument opens in.. yes.. Sumatra. Changing to Edge:




the hyperlink opens in... yes.. Edge.

If, as seems the case, Bluebeam is correctly associated with pdf files, I can't say why the hyperlink fails. Your guess about the protocol may be right- I don't know. If you could make any change to that to test that theory, as you suggest, that would help.

If you wish to view the relevant registry key, a convenient way to get there is via free Filetypesman - a rt click option.

 

Change Default Application

Hello BRUCE,

I'm Jin, a fellow Windows 10 user and an independent advisor.

To change the Default Application for a certain file type:

1. Press Windows key + I to open Settings.

2. Select Apps.

3. Click Default apps.

4. Scroll down and click the link, Choose default apps by file type.

5. Look for the file type, then click on the Choose a default app.

I hope this helps.