Work with your IT team and ensure that "hyperd.exe" and "hyperstarter.exe" have been added as exceptions in all anti-virus software. Ensure all Tableau Desktop related folders and processes are added as exceptions in your anti-virus software.
Anti-virus software is blocking Tableau processes from running.
Check the C:\Users\<username>\Documents\My Tableau Repository\Logs folder to see if a "hyperd.log" file was created. If the file is not present, this indicates the anti-virus software may be blocking the startup of the hyper process, which is specific to Tableau Desktop 10.5 and higher.
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