Why do I have duplicate Apps in Launchpad

They may be different versions of the same app. Click on each and make sure that you keep the most up-to-date version. You can remove the older versions by clicking and holding on an icon, they will all shake and have a big X in the upper right hand corner, clicking on the X will remove the app, both from Launchpad and your app folder.

You don't have them in a folder or something like that in the Applications folder? I had, and that's why I have duplicate icons. But I also would like to know how to remove them!

I also had applications grouped into folders under Applications, and I also have duplicates. Wondering how to get rid of them, too....

I had all my apps arranged into folders before the update and Lion seems to have installed all the Apple apps into the main Applications folder again so to fix this duplication issue I transferred all the non-Apple apps back into the main Applications folder and just deleted the remaining Apple apps from the folders and voila! no duplicates.

Hope this helps with you lot

^ This is 100% correct. I figured it out yesterday while I was playing around, and I was able to get rid of the duplicate applications and organize Launchpad the way I wanted.

how are you able to remove them from the folder? everytime I try it says I can't modify or delete the app because Apple needs it.

I removed all the apps from the folder that were not duplicates (I simply put them back in the main Applications folder), and then I deleted the folder that contained the duplicate apps. I did not have any problems doing it that way, but I did experience the same problem you mentioned when I tried to delete or move the duplicate app directly. Try deleting the containing folder.

The apps in the folders you created are the ones from your old operating system. You should not experience any issues when you delete them and use the apps that Lion re-installs.

Hope this helps you!

When I use AppCleaner to remove the older DVD Player it says it's protected. Also, it says it will delete the same files as the newer version. Is there a way to reinstall DVD Player just in case something happens?

Is the app you are trying to delete within another folder? If it is, you will be stopped from trying to remove the app directly. Try deleting the containing folder, if it is indeed inside of a containing folder. Do not use another app to try and delete it.

well, I did what you said with DVD Player and the duplicate icon no longer appears. However I still have two DVD Player folders. I had attempted to uses AppTrap but decided not to delete it. I then put the DVD Player foilder in the Library, not knowing where it came from.

Now I will try safari but I have one question about that. The two versions still have .plist files and folders in identical areas though there are not two of those. The com.apple.safare.rss.plist file says it was created on June 17, 2010. Is that the old file?

I went into my Applications folder. Found the duplicate versions. Then right clicked to get the infor on each. This allowed me to find the older version, i.e. Pages, Keynote. Deleted the older versions. Then went back into LaunchPad and saw that the duplicated icon was gone. Pretty simply procedure.

I too have the same problem. I have two System Preferences icons in launchpad, but only one in my Applications folder?

It has been a long time since you asked but...I know these days you can activate a shake like in IOS and you can remove them or move them.