Issue
When you try to activate Tableau Desktop, one of the following errors might occur:LM_TS_OPEN_ERROR
Tableau could not access Trusted Storage. Verify that the latest version of the FlexNet Licensing Service is running as a network service. If that does not resolve the issue, try reinstalling Tableau Desktop or Tableau Server.
Or
FlexNet Actvation API handle is invalid. Function flxActCommonHandleOpen returned error (50003, 71000, 10104)
LM_TS_OPEN_ERROR
Tableau could not access Trusted Storage. Verify that the latest version of the FlexNet Licensing Service is running as a network service. If that does not resolve the issue, try reinstalling Tableau Desktop or Tableau Server.