At this time Examsoft does not officially support Windows 10. I received this message below from them today. If you have any questions, please contact firstname.lastname@example.org. I will keep everyone updated. Thanks!!
Dear Key Administrator,
Microsoft recently announced that it will officially release its newest operating system, Windows 10, beginning July 29, 2015. They have announced that this will be a free upgrade for existing Windows users and that users can begin to reserve their update now.
Please note that ExamSoft does not support Windows 10 at this time. Our team of skilled developers and quality assurance testers are working to certify a version of SofTest to be used with Windows 10, however in the mean time, please DO NOT UPDATE your device. We will continue to communicate directly with the ExamSoft Administrators at your institution on our progress.
If you have any concerns, please feel free to contact our Exam Taker Support Team.
ExamSoft Support Team