It actually still works. I had to redo it because of the Update, but it does still work.

There are two "default_partner_content.json"s, one at "Opera\41.0.2353.46\resources", the second one at "AppData\Roaming\Opera Software\Opera Stable".

I replaced both, I don't know which one actually did it. Maybe this helps.

Yep, that actually worked. Cheers!

Although the steps were a little different for me, I had the siteprefs.json and the default_partner_content.json in the same folder from the beginning.

Hey everybody,

so I've been using Opera for a long time now. I'm used to typing a "y" into the URL bar and pressing enter, that instantly gets me to my Youtube feed. Now since today afternoon, every time I put in just the "y" it opens Yahoo. I'm aware of that feature and I use it quite a lot for searching amazon, but now I can't quickly access my Youtube feed anymore (and that's probably my most opened page, accessing it at least 20 times a day, checking uploads and comments, I'm actually a Youtuber myself).
is there any way to disable the "y" for Yahoo shortcut, or disable the whole feature? Because having to change my muscle memory to typing in "yo" every time, that'll take a while and is already driving me insane.

Thanks a lot,
David