What is the cause of duplicate entries in "Open With" in finder?

[Starfyre]

I am surprised to find that right clicking on any icon and going to "open with..." shows 2 of each application that can be opened. Why does this happen? Is it a result of some corruption of some sort?

 

[Watabou]

I had this problem before and this post solved the issue for me:

https://forums.macrumors.com/posts/15319401/

I'm not sure exactly why this happens but I haven't had the problem (so far) in 10.9

 

[Starfyre]

Having encountered this problem using 10.9 out of the box, I just want to make sure that my new hardware isn't causing any software glitches like this.

 

[Watabou]

It's not hardware related.

It's just that Launch Services has a tendency to mess up sometimes, especially if you are working with cloned images. Again, I'm not really sure what causes it to do that.

The above post has a terminal command to rebuild the LaunchServices database. It doesn't prevent the problem from happening again, it's just a temporary solution.

 

[Swampus]

It's not hardware related.

It's just that Launch Services has a tendency to mess up sometimes, especially if you are working with cloned images. Again, I'm not really sure what causes it to do that.

The above post has a terminal command to rebuild the LaunchServices database. It doesn't prevent the problem from happening again, it's just a temporary solution.

But repairing permissions after following the above instructions might be the end of it? Has worked in the past, but I haven't yet encountered this problem with Mavericks.

Let us know if it works.

 

[priitv8]

Just reset Launch Services database and restart Finder.