If you install Cisco Jabber on your computer you may noticed that the presence in Outlook provided by Skype For Bussiness (former Lync) is gone.
This occurs because of the installation from Cisco Jabber. But there is a way to fix that.
1.) Download my Registry-File: https://secure.aebian.org/skype-presence or use the source below.
2.) Reg-File: Double Click on it. Source-Code: Create your own reg-file or add the entries manually.
3.) Check that your settings [File --> Options --> People] match the screen below.
Thats it. After saving everything restart Outlook and Lync and you see the Presence again.