Inside the "folder" the first value is the (Default) value - it's named (Standard) on my PC because I run Windows 10 in German, don't know what it's called in Spanish (but it's always the first...

Alright, I finally found a solution.
Adding these registry entries did the trick:


Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Classes\.jpg]...

I just discovered something weird:
If I select multiple BMP or PNG files, only one instance of Photo Viewer opens up (I haven't noticed this before because most of the time I deal with JPEGs ).
But...

Wow, thanks a lot for replying so quickly! In other forums I sometimes have to wait for days for a reply :)

I also have Builld 10240 and Windows Photo Viewer is already set as my default program...

Hi everyone, this is my first post at the TenForums! :D

Ok, here's my problem: In the previous versions of Windows it was possible to select multiple pictures in a folder and when I hit enter, it...