0KB Outlook PST file

So got a new computer after a long period. Set up everything and it was working just fine. After a reboot, all of my outlook PST files are now 0KB. Literally every one is empty, was previously about 12 GB between 3 PST files and I get an error when I try to open Outlook that my pst file isn't a pst file.

Has anyone ever seen this before? I'm afraid of re-adding a PST file because outlook wiped all of them out, even my archive pst file. In 20 years of dealing with MS BS I've never seen anything like this. It's not an issue of file corruption.

According to my research, I found some similar threads that mentioned it may occur when your data files are corrupted by other programs, for your reference:

chkdsk changed my pst file to 0 Kb

As a suggestion, you could try to follow the suggestions above or repair your data file via Scanpst.exe tool to check.