Note: This article applies only to Office 365 operated by 21Vianet in China. For all other customers, see Install Skype for Business on your PC. .
Install Skype for Business from the Office 365 portal on to the computer you want to use it on. If you’re borrowing a computer, you can easily install Skype for Business to it and just as easily uninstall Skype for Business when you’re finished using that computer, by using the Windows Control panel.
After you install Skype for Business, open it on the computer it’s installed on, and get started.
Important: Skype for Business might already be installed. If you have Office Professional Plus, it probably is. To check, click Start >All Programs > Microsoft Office 2013. If Skype for Business or Lync Basic 2013 is listed, click it, and sign in. If Skype for Business (or Microsoft Office 2013) isn’t listed, keep reading.
Here’s the short version of how to install Skype for Business:
Sign in to your company’s Office 365 portal, click PC & Mac, select your language, and then click Install.
And, the longer version:
Go to the Office 365 portal, type your user name and password, and then click Sign in.
Click PC & Mac, change your language or version if needed by doing the following:
Under Language, select your language.
Under Version , if you’re using the 64-bit version of Windows, click advanced, and then click 64-bit.
Tip: If you don’t know which version you’re running, see Determine whether your computer is running a 32-bit version or 64-bit version of the Windows operating system.
Note: If Skype for Business doesn’t install, contact your workplace technical support to make sure your account includes the Skype for Business Online service.