Skype for Business (April 2015) Windows Update Didn’t Work
When Microsoft released Skype for Business (SfB) through Windows Update (April 2015), I installed it on my home computer and was immediately able to connect to my work Lync environment. When I tried to install it on my work notebook it appears to have installed, but I never got the SfB User Interface. I did some searches and immediately found some hacks to make the Skype for Business UI work if your company has a client policy in place to limit the use of the SfB UI. I was already part of the proper client policy to use the SfB UI, so that shouldn’t be it. It didn’t make sense why I was not seeing it, but I tried the regkey anyway. No Luck. http://pietschsoft.com/post/2015/04/24/Hack-to-Force-new-Skype-for-Business-UI-over-Lync1
It seemed like the update did not install properly. After comparing the updates that were installed, it appears that only the Lync Help Loc update (KB 2889853) was installed.
I finally found this update. https://support.microsoft.com/en-us/kb/2889923
Once I installed this patch, the SfB UI appeared.
There are also quite a few prerequisites listed for the patches. Pay attention that those are installed as well.
BTW… Have I mentioned my dislike for the Skype for Business name and requisite abbreviations (e.g. SfB, S4B, etc.).