Double Click on *.vbox file wants to open IntExp. Re-association wirh ....?

[pstein]

When I double-click on a *,vbox file on Win10 a popup appears asking me with which program I want to open this file (and suggests Internet Explorer).
This is obviously wrong.

With which App/program do I have to re-associate the *.vbox extension?

Why is this not done automatically at installation time of VirtualBox?

Peter

[mpack]

Just reinstall VirtualBox and don't prevent it from registering file associations.

[pstein]

I already re-installed VirtualBox but it didn't help.

BTW: I got no prompt to prevent or allow file associations when re-installing VirtualBox.

Do I really have to uninstall VirtualBox completely before installing it again?

I cannot believe that.

is there no other way to (later) setup file associations)?

Again: When I double click on a *.vbox file I am prompted to tell Win10 with which program I want to open this file.
Which program should I select here?

[mpack]

is there no other way to (later) setup file associations)?

Of course there is, in the usual Windows Hosts way, using right click, "Open with..." and "Choose another app", then associate it with "virtualbox.exe" (if it's still a .vbox file you're talking about).

The VirtualBox installer definitely gave you a dialog box with options for the install. File associations was on that dialog. This is the dialog I mean. Note the fourth checkbox. I normally uncheck the first and third.

[pstein]

Ok, thank you.

I could open *.vbox file

Regarding the dialog box with options:

It appears only on first installation.
When VirtualBox is already installed and I execute virtualbox setup.exe a second time then this dialog box is missing.

[mpack]

Regarding the dialog box with options:
...
When VirtualBox is already installed and I execute virtualbox setup.exe a second time then this dialog box is missing.

This is true: you don't get install options if VirtualBox is already installed, all you get are repair options. So you need to uninstall it first.