HubSpot Sales for Windows tray app install error: 'Process cannot access file because it is being used by another process'

Last updated: October 13, 2020

You may encounter the following error message when attempting to install the HubSpot Sales for Windows tray app:

Process cannot access file because it is being used by another process error message.

To resolve this error:

Press Ctrl + Alt + Delete, then click Task Manager.
Ensure you're on the Processes tab. Locate and right-click SidekickTrayWPF, then select End Process. If a warning window opens to ask if you want to end the process, click End Process again to confirm.
In the Start menu, search for HubSpot for Windows and open it.

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