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Skype for Business 2016 MSI - An Error Has Occurred

Issue: 

Users logging in to Skype for Business 2016 MSI are unable to log in and receive the following error.

 

Solution: 

  • Clear the local Skype for Business cache - Click here for instructions.
  • Make sure Skype for Business is not running.
  • Open File Explorer with Administrator Privileges and navigate to
    • 32 Bit - C:\Program Files (x86)\Common Files\microsoft shared\OFFICE16
    • 64 Bit - C:\Program Files\Common Files\microsoft shared\OFFICE16
  • Locate ADAL.dll and rename to ADAL.dll.old
  • Download the relevant Zip file and extract ADAL.dll
  • Copy ADAL.dll to
    • 32 Bit - C:\Program Files (x86)\Common Files\Microsoft Shared\OFFICE16
    • 64 Bit - C:\Program Files\Common Files\Microsoft Shared\OFFICE16
  • Open Skype for Business and sign in.

 

If you continue to experience issues after applying this fix, please contact VIA Support.

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