Workaround for Lync for Mac Crashes on Mac OS X 10.7.2

Microsoft Office for Mac team just published that the recent update to Mac OS X Lion 10.7.2 installs an invalid login certificate on most systems, which results in Lync for Mac crashing when it tries to sign in.The tema promises to release a software update soon. Meanwhile, if you are facing the above mentioned issues, […]

Microsoft Office for Mac team just published that the recent update to Mac OS X Lion 10.7.2 installs an invalid login certificate on most systems, which results in Lync for Mac crashing when it tries to sign in.

The tema promises to release a software update soon. Meanwhile, if you are facing the above mentioned issues, there is a workaround that seems to be working for most users -- per Office for Mac team blog post:

  1. Open the utility Keychain Access - from Finder to go Applications and then into the Utilities folder. Or just search for it via Spotlight.
  2. In Keychain Access - in the left pane click on "login" on the top, and "Certificates" on the bottom.
  3. In the right pane, find a certificate with the name "unknown". Select it and delete it. You may have to unlock your keychain with your password.
  4. Close Keychain Access.
  5. Restart Microsoft Lync.Office for Mac