I'm trying to help a neighbor out with quickbooks. I'd rather not make a mistake so please bear with me as I explain the situation.

With that said, they had quickbooks desktop installed on a Mac through bootcamp running windows 10. Both operating systems decided to crap out. I spent most of today fiddling with both systems trying to find a path of least resistance. I got Mac up and running but windows will not load normally or in safe mode, it will not chkdsk /f. Would love to save and fix whatever is broken in windows but I'm running out of tricks. I'm thinking I might have to reinstall windows but I need to know:

I can access company files from the Mac side so I copied them over (C:Users/Public/Documents/Intuit/Quickbooks/). I don't think this counts as a backup so was wondering is there a way to restore from this data?