When upgrading to AirWatch 8.2, the installer fails if you are utilizing Windows Authentication for the SQL database connection. If you are using Windows Authentication, you will see the error message:
Failed to launch 5\Grant.exe.
As a workaround, use SQL authentication instead of Windows Authentication when connecting to the database instance.
This issue has been given identifier SINST-174042. This issue has been resolved in AirWatch 8.2 FP01.