Open Device Manager and look under "System Devices." You should see Virtual Gamepad Emulation Bus listed without any yellow warning triangles.
However, if you've installed the VIGEM software and no longer use it, you may choose to uninstall it to free up disk space. To uninstall the software, go to the Control Panel, select "Programs and Features," and look for "Virtual Game Bus" or "VIGEM." Select the software and follow the prompts to uninstall it. vigembussetup116116exe link
No legitimate software distribution uses that exact naming convention. The safest course is to: Open Device Manager and look under "System Devices
If you have already downloaded or run this file, take these steps immediately: go to the Control Panel