Flight Sim 2020 keeps crashing even with the a beast of a PC and Video card?

Same issue here. when it crashes i get the following in windows event viewer:

Faulting application name: FlightSimulator.exe, version: 1.7.12.0, time stamp: 0x5f2ee5e4

Faulting module name: grammar.pggmod, version: 68.0.5727.0, time stamp: 0x5f2b24d2

Exception code: 0xc0000006

Fault offset: 0x00000000015f6f30

Faulting process id: 0x2a5c

Faulting application start time: 0x01d677f31347ba6a

Faulting application path: H:\SteamLibrary\steamapps\common\MicrosoftFlightSimulator\FlightSimulator.exe

Faulting module path: H:\Flightsim\Official\Steam\bf-pgg\PGG\grammar.pggmod

Report Id: 27893a33-ccc3-47dc-9b2a-94921ece9c04

Faulting package full name: 

Faulting package-relative application ID: 

Windows cannot access the file H:\Flightsim\Official\Steam\bf-pgg\PGG\grammar.pggmod for one of the following reasons: there is a problem with the network connection, the disk that the file is stored on, or the storage drivers installed on this computer; or the disk is missing. Windows closed the program FlightSimulator.exe because of this error.

Program: FlightSimulator.exe

File: H:\Flightsim\Official\Steam\bf-pgg\PGG\grammar.pggmod

The error value is listed in the Additional Data section.

User Action

1. Open the file again. This situation might be a temporary problem that corrects itself when the program runs again.
2. If the file still cannot be accessed and

• It is on the network, your network administrator should verify that there is not a problem with the network and that the server can be contacted.
• It is on a removable disk, for example, a floppy disk or CD-ROM, verify that the disk is fully inserted into the computer.

3. Check and repair the file system by running CHKDSK. To run CHKDSK, click Start, click Run, type CMD, and then click OK. At the command prompt, type CHKDSK /F, and then press ENTER.
4. If the problem persists, restore the file from a backup copy.
5. Determine whether other files on the same disk can be opened. If not, the disk might be damaged. If it is a hard disk, contact your administrator or computer hardware vendor for further assistance.

Additional Data

Error value: C0000483

Disk type: 3

it is likely a software crash. In the beginning I couldn't even load into any flight. I fix it by disabling MSI afterburner and all background task/services.

Yh im downloading it again to see if it helps. But they need to release a patch ASAP. I havent got a weak GPU so should be a problem. People seem to be have a vast array of problems. Im probably lucky thay its its only crashing to the desktop! Absolutely awful from Microsoft!!!

Went to the NVIDIA site and checked on drivers.  It was difficult to tell as the version numbers had a different format, but the NVIDIA driver seemed newer, so I downloaded it and installed it.

As a result the game doesn't crash anymore.

Hopefully that continues working for you. The only thing the new driver did for me was make the performance a bit lower. On occasion before a crash my GPU will show the same but also at the same time is when my pagefile use turns red and goes to ~50GB filling the drive then crashing. My GPU apparently has nothing to do during the last half a second while it's freaking oit flooding the out over filling the pagefile. Hopefully your problem was different and you are good to go.

Yh got same issue the game runs well! Until it crashes to desktop. So annoying!

Mine doesn't crash out to desktop. It actually makes the screen go blank and then immediately restarts the PC. I'm trying a delete and re install of the software but its a pain because it takes over 4 hours to download!.  Just a completely rubbish way of installing a game for it then to have these issues that you cant even play it. This is proving to be the biggest foul up ever by MS.