Regular crashes under Windows 10

My wife and I have been using Scrivener very happily on a series of Windows machines for five years, but in the last month it’s begun freezing on her year-old Thinkpad, which runs Windows 10. She usually makes it about 20 minutes into a writing session before something goes wrong, and she has to reboot. I’ve tried reinstalling it, but it’s still happening. Is there a chance that it’s her project file that’s causing the problem, and if so, is there a way to make a new one that doesn’t have the issue? Any other thoughts welcome.

My own Windows 10 machine continues to work fine.