Lync Client showing old picture

Issue: Lync Client showing old picture

Description: In Outlook it is showing the new picture but in the Lync Client still showing the old picture and not updating to new picture.

Things to Check:
In Outlook, check Test Email Auto configuration

Perform below steps to fix the issue:

Exit from Outlook & Delete offline address books folder

Sign out from SfB & Delete Sign in Info

Go to C:\Users\<UserID>\AppData\Local\Microsoft\Office\15.0\Lync and delete all the folders

Open Regedit -> Computer\HKCU\Software\Microsoft\Office\15.0\Lync\<User Sip profile> Delete User Sip profile from registry

Open Outlook & later SfB

After performing above steps, issue is resolved.