Have you tried to set your 'Default' programs from the Control Panel?
QUOTE
Click to open Default Programs.
In Default Programs, you can:
Set your default programs. Use this option to choose which programs you want
Windows to use by default. If you want to use your media player to open all
media files, use this option.
The options you set here only apply to your user account. Your choices won't
affect other user accounts on the computer. To change program access for all
users on this computer, see Change default programs using Set Program Access
and Computer Defaults.