Hi!
Do you mean this issue occurs when you launched the Skype for Business client?
If so, we can try the following methods to troubleshoot it:
*Perform a clean boot for your Windows 10 Pro. For more information, you can learn it from:
https://support.microsoft.com/en-sg/help/929135/how-to-perform-a-clean-boot-in-windows
*Try to open SFB in the safe mode. This is to isolate the potential add-in’s affection. For more details, you can refer to:
Some users also met the same issue and they found the workaround is to right-click the app> More.. ‘Run as” and the use the same user account that it fails with when starting the app normally. For more discussion, you can refer to:
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