Windows Program Compatibility Assistance advises that this program may not have installed correctly when installing Symantec Endpoint Protection 12.1 RU2 on Windows Vista, Windows 7, or Windows 8 operating systems.
This program might not have installed correctly
If this program didn't install correctly, you can try installing the program using compatibility settings.
Install using compatibility settings
This program installed correctly
The Program Compatibility Assistant detects the single .exe SFX SEP client installation package as being incompatible.
In the Program Compatibility Assistance window, click This program installed correctly.