Hi there,
Since February we've noticed a bug with GoToMyPC and Dell Latitiude 7400 laptops.
The brightness adjustment does not work - this includes adjustment through fn keys, Windows 10 interface, and BIOS. This issue occurs on multiple machines with various different versions of Dell drivers.
The only way we've been able to resolve the issue has been to completely remove GotoMyPC from the device.
Please let me know if you need any additional details.
Thank you!