Getting Grounded: Why MSFS Crashes and How to Approach Fixes

Microsoft Flight Simulator (MSFS) delivers stunningly realistic aviation, but even the most powerful PC can struggle under its demands. Crashes, lock-ups, and error messages are frustrating, especially when they cut a long-haul flight short. The good news is that most MSFS issues stem from a handful of common sources. This guide walks you through each systematically—from basic software checks to advanced system tuning—so you can diagnose problems quickly and get back to the skies with confidence.

The key is to tackle issues in a logical order: start with the simplest, least disruptive fixes (updates, file verification) before moving into hardware diagnostics or reinstalling. Keep a note of any error codes or crash patterns, as they narrow down the culprit dramatically. Below we cover the most frequent crash types, the error messages you’ll see, and step‑by‑step solutions for each.

Identifying the Type of Crash or Error

Before you start tinkering, note exactly when and how the crash occurs. This observation helps you skip unnecessary steps. The most common crash scenarios in MSFS are:

  • Crash at startup – The simulator freezes or closes within seconds of launching.
  • Crash during loading – Usually when loading a flight, a specific airport, or an aircraft.
  • Crash mid‑flight – Often triggered by scenery transitions, changing weather, or add‑on aircraft.
  • Performance drop followed by crash – FPS plummets, then the game freezes or throws an error.
  • Specific error messages – “MSFS has stopped working,” “Graphics driver crashed,” “Missing or corrupt files,” “Memory access violation.”

Common Culprits Behind Each Crash Type

  • Startup crashes – Outdated graphics drivers, corrupted installation files, third‑party add‑ons that fail to load, or conflicting background software (e.g., overlays from Discord, GeForce Experience, or antivirus).
  • Loading crashes – Corrupted community folder mods, insufficient RAM or VRAM, outdated airport scenery, or a failing hard drive/SSD causing read errors.
  • Mid‑flight crashes – Overheating hardware (especially CPU/GPU), power supply instability, memory leaks in add‑ons, or weather data downloads causing network timeouts.
  • General performance crashes – Graphics settings exceeding your hardware’s capacity, V‑Sync issues, or background processes competing for resources.

Understanding the pattern helps you find the right solution faster. For example, a consistent crash after installing a new aircraft mod points directly to that mod, not your drivers or Windows.

Step‑by‑Step Troubleshooting

The following steps progress from least invasive to more involved solutions. Follow them in order, testing the game after each step before moving on.

1. Update Everything – System, Drivers, and the Simulator

An outdated component is the top cause of MSFS errors. Start with:

  • Windows Update – Install all pending updates, including optional driver updates that Windows may offer for your chipset or network adapter.
  • Graphics drivers – Download the latest Game Ready driver from NVIDIA, AMD, or Intel. Use a clean installation option to remove old files.
  • MSFS updates – Launch the simulator and allow it to check for content updates. If you use Steam, also verify game files (next step). On Microsoft Store, go to Updates & Downloads in the Store app to ensure the latest version is installed.

2. Verify Game File Integrity

Corrupted or missing game files cause a wide range of erratic behavior. The method depends on your platform:

  • Steam – Right‑click Microsoft Flight Simulator in your library → Properties → Local Files → “Verify integrity of game files…”. Steam will re‑download any damaged or missing files.
  • Microsoft Store / Xbox App – Open Settings → Apps → Apps & features → find MSFS → Advanced options → Repair (or Reset). Repair keeps your data; Reset deletes everything but the core files. Start with Repair.
  • Manual check – If you have add‑ons or mods, temporarily rename your Community folder (found at %APPDATA%\Microsoft Flight Simulator 2020\Packages\Community) to Community_Backup. If the crash stops, the issue is in one of your mods. You can then add them back one by one.

3. Tweak In‑Game Graphics Settings

MSFS is notorious for pushing hardware to its limits. Reducing settings often prevents crashes without sacrificing too much visual quality:

  • Set Texture Quality and Terrain Level of Detail to “High” or “Medium” instead of “Ultra.
  • Disable V‑Sync or set it to “Adaptive.” Forcing V‑Sync can cause stuttering and crashes on some combinations of GPU and monitor refresh rate.
  • Reduce Render Scaling to 100% or lower (TAA works well for anti‑aliasing without extra load).
  • Turn down AI Traffic, Airport Vehicle Density, and Weather Details. These heavily tax the CPU.
  • If you have a lower‑end PC, consider using the High‑End PC preset as a baseline and then increase settings one by one until the system is stable.

4. Check Hardware Resources and Background Processes

Even powerful rigs can crash if something is competing for resources or thermal limits are hit. Run the following checks:

  • Open Task Manager (Ctrl+Shift+Esc) while MSFS is running or immediately after a crash. Look at CPU, GPU, RAM, and disk usage. If any component hits 100% consistently, it’s a bottleneck or potential cause of instability.
  • Close unnecessary background applications: browser tabs, Discord overlays, RGB controller software, antivirus scans, torrent clients, and backup tools. Use the “Startup” tab in Task Manager to disable non‑essential apps from launching with Windows.
  • Monitor temperatures – Use HWMonitor or MSI Afterburner to check CPU and GPU temps. If either exceeds 85°C (185°F), throttling or thermal shutdown may cause crashes. Improve airflow, check fans, or consider repasting the CPU.
  • Run a memory test – Windows Memory Diagnostic can find faulty RAM. Type “Windows Memory Diagnostic” in the Start menu and choose “Restart now and check for problems.”

5. Adjust Windows and System Settings

MSFS sometimes conflicts with Windows power management or page file settings. Try these tweaks:

  • Power plan – Set Windows to “High performance” in Control Panel → Power Options. Prevent the CPU from downclocking.
  • Virtual memory (page file) – Ensure your system has a page file of at least 1.5x your physical RAM. For 16 GB, set the initial and maximum size to 24576 MB (24 GB). Place it on an SSD if possible.
  • Disable hardware acceleration in browsers and apps – This can free up GPU resources. In Discord, for example, disable “Hardware Acceleration” under Advanced.
  • Disable Full‑screen Optimizations – Right‑click FlightSimulator.exe → Properties → Compatibility → check “Disable full‑screen optimizations”. Also try running it as Administrator.

6. Investigate Overclocking and Stability

Overclocked CPUs, GPUs, or RAM can cause reproducible crashes in MSFS, even if other games run fine. The simulator pushes hardware differently. To test:

  • Reset your CPU and GPU to stock clocks in BIOS or utility software.
  • If you’ve enabled XMP/DOCP for RAM, try running at the default JEDEC speed (usually 2133 MHz or 2400 MHz).
  • If overclocks are stable elsewhere but crash in MSFS, consider a slight undervolt instead. Many modern GPUs can run cooler and more stable with a modest undervolt.

Handling Specific Error Messages

While the steps above cover 80% of crashes, some errors have their own unique fixes.

“MSFS has stopped working” or “FlightSimulator.exe has stopped working”

This generic error often points to a crash in the game engine itself. After trying the general fixes, pay special attention to:

  • Community folder mods – Disable all mods by renaming the folder as described in Step 2. If the game runs clean, add mods back in small groups to find the offender.
  • Online functionality – Temporarily set MSFS to “Offline Mode” (from the main menu profile). Some crashes are caused by a faulty connection to Azure services.
  • Antivirus/firewall – Add the MSFS folder and executable to the exclusion list of your security software.

“Graphics driver crashed” or “DirectX encountered an unrecoverable error”

This is almost always GPU‑related. Steps beyond driver updates include:

  • Switch DirectX version – In MSFS Settings → General → Graphics, try toggling between DirectX 11 and 12. Some GPUs work better with one or the other.
  • Lower the graphics preset drastically and test. If the error disappears, you may have a hardware instability at higher loads.
  • Run a GPU stress test (e.g., FurMark or Unigine Heaven) to verify the card isn’t failing under load.
  • Check for driver timeouts – In Windows Event Viewer (Application logs), look for “Display driver nvlddmkm stopped responding” (NVIDIA) or similar for AMD. If you see these, reduce GPU clocks or increase power limit.

“Missing or corrupt files” or “MSFS 2020 – error 0x00000001”

These suggest a corrupted installation or download. Use the verification step above. If the problem persists:

  • Delete the content of %APPDATA%\Microsoft Flight Simulator 2020\ (after backing up your Community folder). This forces the game to rebuild its cache and configuration files.
  • Reinstall from scratch as a last resort. Ensure you have a stable internet connection; partial downloads can cause corruption.

“Memory access violation” or “Out of memory”

This indicates the game tried to access an invalid block of memory, often due to add‑on conflicts or insufficient VRAM/RAM. Apply these fixes:

  • Increase Windows page file size manually (as above).
  • Reduce texture quality and terrain level of detail.
  • Disable all add‑on scenery or aircraft that are notorious for high memory usage (e.g., some complex payware airports).
  • Monitor memory usage with HWMonitor. If you see usage near 100% just before the crash, you need more RAM or VRAM.

Advanced Troubleshooting and Community Resources

When standard fixes don’t work, the MSFS community and official channels offer deeper help.

  • Official MSFS Forum – The Flight Simulator Forum has dedicated sections for crashes and technical support. Use the search feature before posting; many issues already have detailed solutions.
  • Zendesk Support – For persistent bugs, submit a ticket to Microsoft Flight Simulator Support. Include your dxdiag log and crash dump files.
  • YouTube and Video Guides – Search for your specific error code; many simmers walk through video fixes.
  • Third‑party diagnostic tools – Programs like DDU (Display Driver Uninstaller) can completely remove old driver remnants. Use it when you suspect a corrupted driver installation.

Preventive Maintenance for Smooth Flying

Once you’ve stabilized MSFS, take a few proactive steps to reduce future crashes:

  • Keep a clean Community folder – Regularly review and remove mods you no longer use. Outdated mods are a primary source of crashes after updates.
  • Back up your settings – Copy the UserCfg.opt and Content.xml files from %APPDATA%\Microsoft Flight Simulator 2020\. They store your graphics and content choices.
  • Monitor update notes – Major MSFS updates sometimes break compatibility with add‑ons. Wait a few days after an update before updating mods, and check the mod developer’s announcements.
  • Run periodic hardware checks – Scan for disk errors and run a memory test every few months. Dust your PC’s interior to prevent overheating.

When to Reinstall

Reinstalling MSFS is a time‑consuming last resort, but it can resolve deep‑seated corruption. Consider it if:

  • You’ve exhausted all other troubleshooting steps (including a clean boot and stripping the Community folder).
  • You get the same error on multiple flights after a major game update.
  • The game repeatedly fails to verify or repair files, even after a clean install of Windows Store/Steam.

When reinstalling, use the “Reset” option in Windows Settings first (it only removes user data, not the 150+ GB install), and only do a full uninstall/reinstall if that doesn’t help. Be sure to back up your Community folder, as it is not preserved.

Final Thoughts

Crashes and errors in Microsoft Flight Simulator are rarely random. By systematically checking the factors listed above—drivers, files, settings, hardware, and mods—you can isolate the problem in under an hour. Start with the least invasive steps and work your way through. Join the community forums to see common patterns, and always keep your Windows and drivers updated.

The sky is waiting, and with a stable simulator, every flight becomes a pleasure rather than a battle. Safe flying!