have you already checked the well known hint about windows virtual memory ?
How is your setting ? Possible make a screenshot of the windows virtual settings dialog.
Please try Min 4GIG / MAX at least 20GIG (better more).
I assume C: is one of your small SSD, or ?
EDIT:
add some links:
FAQ
https://flightsimulator.zendesk.com/hc/en-us/articles/360015893879-How-to-troubleshoot-crashes-CTDs
Forum ( one of … )
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