OS X Yosemite looks great but has some strange bugs (See «How to fix the Notification Center on OS X Yosemite»). An other bug is the broken Finder search. I found this after I tried to search files in a unpacked folder of some downloaded files. They were inside the folder, but Finder just didn’t found them. Looks like Spotlight is broken on OS X Yosemite.

Finally I tried to reset Spotlight.

Open the Terminal application (Terminal @Spotlight – this should work!) and run these commands to reset Spotlight:

sudo rm -rf /.Spotlight-V100
sudo rm -rf /.Spotlight-V200
sudo mdutil -i off /
sudo mdutil -i on /
sudo mdutil -E /

The Finder search should work fine right now, but it could break again – just run the commands above again.

Alternatively you could download (or just create your own) the commands bundled to a bash script and run it directly:

wget http://marcel.zurreck.com/files/os_x_spotlight_reset.sh
./os_x_spotlight_reset.sh