System properties not set on Windows 10 unless dynamic
When used directly in conditions, System properties aren't set, either in 4.3.0 or 5.1.2, on Windows 10. Either when using 4.x or 5.x style (SYSTEM_ or SYSTEM). Seems like they are being initialized after the xml is processed.
Works fine on Windows 8 and non-Windows platforms.
Workaround: Use as the value in a variable in the dynamicvariables section. This fixes it both on 4.3.0 and 5.1.2.