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Fortnite asking to unload mslo.64, then crashes.

tim 0 Reputation points
2026-06-07T03:59:05.7966667+00:00

Hello! I have been unable to load fortnite for a couple weeks now, getting this error message then it crashes. I have tried to rename the file, I have deleted everything i can find related to the mslo.64 file, ASUS, and also Armory Crate, verified files, no luck.. Can anyone help me please?

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Windows for home | Other | Gaming
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  1. Lester Bernard Reyes 82,025 Reputation points Independent Advisor
    2026-06-07T04:40:43.2966667+00:00

    Hi, I'm Bernard. I'm happy to help!

    The particular error is from the AURA RGB software. Kindly try to uninstall the software, then check it again. If the issue persists, please follow the steps provided by AI answer.

    Note: This is a public forum. I may respond shortly, but I apologize in advance for any delays. I am simply a fellow user trying to provide helpful insights and information.

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    4 people found this answer helpful.

  2. AI answer

    2026-06-07T03:59:22.2133333+00:00

    The issue is caused by ASUS/Armoury Crate software (and related services/drivers) conflicting with the game’s anti‑cheat. Similar ASUS tools have been seen to cause crashes and BSODs, and users resolved them by fully removing or disabling Armoury Crate and its background components.

    Use these steps:

    1. Fully remove ASUS Armoury Crate and related tools
      • Uninstall Armoury Crate and any ASUS system‑tuning/overclocking utilities from Settings → Apps → Installed apps.
      • After uninstalling, restart Windows.
    2. Disable remaining ASUS services/drivers
      • Open Services (run services.msc).
      • Look for ASUS/Armoury/AC‑named services (for example, crash‑defender or monitoring services) and set Startup type = Disabled, then Stop them.
      • Restart Windows again.
    3. Test Fortnite
      • Launch Fortnite after the restart.
      • If it starts correctly, the msio64.sys/mslo.64 driver was being loaded by the ASUS tools that are now disabled.
    4. If problems persist
      • As a more drastic but proven fix in similar ASUS cases, reimage or clean‑install Windows using the vendor’s recovery image, then avoid installing Armoury Crate afterward.

    These steps align with other ASUS users who eliminated crashes and launch errors by removing Armoury Crate and its associated drivers.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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    1 person found this answer helpful.
  3. Lester Bernard Reyes 82,025 Reputation points Independent Advisor
    2026-06-08T01:03:05.06+00:00

    Hi, thank you for replying. Have you tried uninstalling Fortnite and reinstalling it? If yes, please let me know the Windows version and edition you have. A system repair might be necessary.

    To check:

    Go to Settings > System > About

    Under Windows specifications, please let me know the Windows version and edition you have.

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