Note Lync 2013 was upgraded to Skype for Business in April 2015.
Important Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.
To work around this problem, manually change the product name displays. To do this, use the following methods, depending on your operating system version and whether you are running the Basic client or Pro-Plus (full) client.
Follow these steps for the following setups:
64-bit of Lync 2013 Basic client running on 64-bit Windows
32-bit Lync 2013 Basic client running on 32-bit Windows
Exit the Lync 2013 (Skype for Business 2015) client.
Start Registry Editor, and then locate and select the following subkey: