Hi Luke,
Thanks for sharing the update.
It's good to know that the problem with Windows 7 has been resolved after installing parallel drivers. I would like to inform that in Sentinel System drivers 7.6.0, we have provided choice to install parallel drivers unlike USB system drivers which gets installed by default. Therefore, its Not the case with issue similar to Windows 10 update 1803.
I shall wait for your test results with Windows 10 machine.
Please feel free to get back to us.
Regards,
Gaurav Bhanot