Which version of formZ exactly are you referring to? (Version 7 will always show Windows 8 OS instead of v10 because it was created before Windows 10 was released, but version 8.5.6 (or newer) will show Windows 10 on the startup screen.)
You should first identify if this issue only occurs with Maxwell Render loaded (as was the case for Pointer), or if this occurs even with no Maxwell Render loaded. If Maxwell is required, then PylonTechnical support should be able to help with this. But if it occurs even without Maxwell Render loaded, then please continue.
Following the steps ( 1-3 below) should only take about 15 - 20 minutes, so finish your deadlines if you can for now -- and then try those steps when you have time. And please test exactly what we suggest so we can help most effectively:
1. Quit formZ and download the current version (and follow the directions on that page):
2. Once Copied into place, launch formZ. (Do not do anything else first.)
3. If it does not launch, completely Quit formZ, Delete the autodessys folder. Then relaunch (ok), and Quit. Relaunch again. Is it still OK, or is it not launching after these exact steps?
(And maybe #4): And if that is now still working -- are there any other specific steps that are necessary to make the problem return once more on your computer?
The previous instructions should be quick and simple to follow -- and should help identify and resolve issues. You can try this using 8.5.6, or the WIP v8.5.7. Both should work well in general, but again if you have ANY specifics, please send them, along with a file to email@example.com so we can help directly.