Default PDF handler getting reset on Windows 11

Every time I restart my laptop, which is running Windows 11 Home, if I try to open a PDF file with Foxit PDF Reader, I get this message:

I can click “Yes” and, after clicking the button granting admin access to make the change, the Foxit PDF Reader is set as the default, and any PDFs I open subsequently will automatically open with that reader.

But the next day, after restarting, it’s back to no default. What’s going on? I disabled all services and scheduled tasks for other apps that I thought might be screwing this up, but to no avail.

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If I get this right, the steps are (1) restart laptop, (2) open Foxit, and (3) within Foxit, open a pdf file?

What happens if you are not in Foxit, and you just double-click on the pdf file? That is the only way I open pdf files, and I go directly into my default viewer. I too am using Windows 11 Home on my laptop. My pdf viewer is set to SumatraPDF, and it is what opens when I open a pdf file.

(I rarely restart my laptop, but it does happen, and I’ve never seen any impact on the above process.)

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Sorry: I wasn’t clear. I’m just double clicking on PDF files in Windows Explorer. I WANT it to open Foxit PDF Reader, which it does, but after a restart of the laptop, Foxit tells me it’s not the default PDF reader, despite my having set it to be the default the last time (which it remains until the next restart).

[ I just noticed I posted this thread in the wrong group. ]

Since double-clicking on a PDF file does open Foxit, it would appear that the default is Foxit. So the message that is annoying you appears to be something in Foxit that is getting it wrong. Annoying? Sure. Safe to ignore? Probably.

Well, Foxit reader is associated with PDF files, true, but it’s not “the default PDF handler” whatever that means exactly (I’m sure it’s some registry setting. And the absence of that setting is what Foxit is complaining about.

Oddly, as of today though, it’s no longer complaining. Perhaps the tasks and services I disabled are finally taking effect…