Outlook app will pop up a prompt window ask me "how do you want to open this file" every time when I open any attachment via outlook. Even if the option "Always use this app to open" is checked, but outlook still will pop up the prompt window. No matter what type of files I open: PDF files, excel files, word files, only open the attachment on outlook will have this issue.
If I open any files on desktop, it can open directly.
I had try to uninstall Microsoft 365 and restart computer, and then reinstall Microsoft 365, but it have the same issue.
I had try to choose default apps by files type, but it also have the same issue.
Please kindly help to advise how to fix this issue.
Thank you!