Meet all-new Skype For Business on Mac: https://www.microsoft.com/en-us/download/details.aspx?id=54108
How to uninstall old Lync 2011 client:
To perform a clean uninstall of Lync for Mac 2011, follow these steps:
Note You may be able to avoid uninstalling Lync for Mac 2011 if you create a new profile on the Mac. If you contact Microsoft technical support, you may be asked to create the new profile as a troubleshooting step. If the issue is resolved by creating the new profile, it will be determined that the issue was caused by a corrupted profile.
- Log on to your computer by using administrative credentials.
- Exit Lync if it’s running.
- Drag the Lync application to the Trash.
- To remove your existing Lync preferences, delete the following files:
Note This file is present only if you turned on Lync Logging.
- To remove all Lync files from your computer, delete the following folders in the Users/username/Documents/Microsoft User Data folder:
- Microsoft Lync Data
- Microsoft Lync History
Note If you delete the Microsoft Lync History folder, you delete all conversations that are saved in the Conversation History.
- In the Applications/Utilities folder, open Keychain Access.
- Delete any keychains on the left that resemble OC__KeyContainer__<email address>.
- In your Login keychain, delete the <your email address> certificate.
- In the Users/username/Library/Keychains folder, delete all the files that resemble OC__KeyContainer__<email address>.
See the following table for more information about the path locations that are used in Lync for Mac 2011:
|Users/Home Folder/Documents/Microsoft User Data/Microsoft Lync Data||Contains information about the users who have logged into Lync for Mac 2011 on this user account.|
|Users/Home Folder/Documents/Microsoft User Data/Microsoft Lync History||Contains conversation history for the user currently logged in.|
|Users/Home Folder/Library/Preferences/com.microsoft.Lync.plist||Contains application preferences for Lync.|
|Users/Home Folder/Library/Caches/com.microsoft.Lync||Contains server names and endpoints from previous connections to Lync servers.|