Open the PreVeil application,
...
click on the human silhouette icon, and find the final item in the drop-down menu. The version is a three part number separated by dots such as
...
5.5.0
In the Windows operating systems the version can be checked in Programs and Features
Open the run dialogue window (Windows key + R)
Input appwiz.cpl and click OK
Locate PreVeil and find the version number
...