Today, when the message came up again, I arbitrarily assigned the file to Adobe reader. It could not read the file, but at least gave me the file name. It is: E48da14. Now if I could find where this...

Hi

I have neither of those apps installed.

My machine running windows 10 updated the other day to the "anniversary edition". After this, each time the machine boots up, I get a dialog box asking me to associate an app with some weird file...