I have Windows 10. Their earlier Ledger Live version had a sync issue and used to crash in between a transaction and the problem happens now too but less often since I updated it.
I personally don't use LL because Electrum is all I need for now, but as far as I can see on Ledger Reddit, back a few months and maybe a year, a lot of people complain that their LL is very unstable and crashing o W10. At the same time, it works for some without any problems, even on the W7 - which gives the impression that it's not just the OS in general, but the combination of OS and PC hardware. For example, I can not run LL on W7, it crushes in just few seconds, and one user on the forum is made a firmware update on the same OS with some small problems.
What you can try to do is to uninstall Ledger Live/delete his folder, sometimes old and new files can create problems, and clean installation may be helpful.