Here, we will show the comprehensive guide to remove Skype contacts (one, multiple or all) on your Windows, Mac, iPhone, Android and more devices. HOW TO UNINSTALL SKYPE FOR BUSINESS ON A MAC ANDROID Keychains > all files beginning with OC_Ke圜ontainer.Logs > Microsoft-Lync-x.log and Microsoft-Lync.log.Go to Finder > press Command+Shift+G > type in /users//documents > navigate to Microsoft User Data > delete the following folders: Microsoft Lync Data and Microsoft Lync History.Open Keychain Access from /Applications/Utilities folder.Delete all keychains starting with OC_Ke圜ontainer.What to Know Windows: Search for Skype on system > select Skype in results > select Uninstall > confirm. In your Login keychain, delete all e-mail address certificates.HOW TO UNINSTALL SKYPE FOR BUSINESS ON A MAC FREE.HOW TO UNINSTALL SKYPE FOR BUSINESS ON A MAC ANDROID.HOW TO UNINSTALL SKYPE FOR BUSINESS ON A MAC MAC OS X.