If Genshin Impact shows “Failed to load MTBenchmark_Windows.dll error 0x7e,” start with the game’s file-integrity check, then check Microsoft Visual C++ runtimes and graphics drivers. Windows defines 0x7E as “The specified module could not be found,” but the code alone does not reveal which file or dependency is missing. These are sensible troubleshooting steps—not five confirmed cures for this specific error.
What Genshin Impact error 0x7E means
Windows assigns error 0x7E (decimal 126) to ERROR_MOD_NOT_FOUND: “The specified module could not be found.” That description does not identify the missing module on your PC, and it does not prove that the named DLL itself is absent.
The Genshin-specific wording “Failed to load MTBenchmark_Windows.dll error 0x7e” appears in a community technical guide dated approximately 2021. It is not a current official HoYoverse diagnosis of the cause. Also, do not confuse this message with Windows bug check 0x7E, a separate blue-screen error describing a system-thread exception.
Try these five troubleshooting steps
1. Verify Genshin’s game files
Begin with the least disruptive check. HoYoverse’s general PC troubleshooting guidance recommends checking resource integrity, though it does not identify this as a specific fix for error 0x7E.
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- At the game’s login screen, select the wrench icon and choose the resource-integrity check. Alternatively, use the resource settings available in-game.
- Let the check finish and apply any repair it offers, then try launching the game again.
HoYoPlay’s “Repair Now” option is mentioned by HoYoverse for a different download error; that advice should not be treated as a targeted 0x7E remedy.
2. Check Microsoft Visual C++ runtimes
A program built with Microsoft Visual C++ may depend on runtime libraries being present. Microsoft advises matching the redistributable’s architecture to the application’s target architecture. Installing a runtime is a plausible check, not a guaranteed solution: the available guidance does not establish which runtime version, if any, is required for this Genshin error.
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- Use Microsoft’s official Visual C++ Redistributable downloads and guidance.
- Follow Microsoft’s architecture guidance for the application; do not assume that installing only one package architecture is appropriate.
- If the relevant runtime is already installed, use Windows’ installed-apps settings to modify or repair it if that option is available, then restart and test the game.
The older community guide specifically suggests Visual C++ Redistributables 2013 and 2015, but Microsoft’s current documentation should guide download and support decisions. HoYoverse’s 2020 FAQ recommends the latest x64 redistributable for a different launch message, not this 0x7E error.
3. Update or cleanly reinstall graphics drivers
HoYoverse’s current advice for broader PC crashing or freezing is to ensure graphics drivers are up to date and, if they already are, try a clean reinstallation. This does not establish that a graphics driver causes the MTBenchmark DLL message; treat it as a general launch-troubleshooting step if the first checks do not help.
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Use the driver update or clean-install option provided by your graphics-card manufacturer. Avoid removing unrelated system components or changing several settings at once, so you can tell whether the driver change affected the launch failure.
4. Reinstall Genshin Impact cleanly
A clean reinstall is more disruptive than repairing files or checking runtimes, so leave it until after those checks. The community guide recommends uninstalling and reinstalling the game, but neither that guide nor HoYoverse establishes that reinstalling fixes every instance of 0x7E.
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- Uninstall Genshin Impact using Windows’ installed-apps settings or the game launcher’s uninstall option.
- Install it again using the official launcher, then allow the download and resource verification to complete before launching.
5. Save logs and contact HoYoverse support
If the error persists, send HoYoverse support details that may help distinguish a game-file problem from a system-specific dependency issue. HoYoverse asks for your PC specifications, the date and time the issue occurred, and your antivirus name and version, along with relevant logs.
output_log.txt- Files whose names begin with
mihoyocrash driverError.log
Save output_log.txt and the mihoyocrash files before restarting the game: HoYoverse warns that those files reset when the game restarts. Its PC troubleshooting guidance lists the requested information and logs.
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What not to do
- Do not download a standalone DLL from a third-party DLL site. The error code does not establish that the named file itself is the missing dependency, and an unofficial replacement can introduce security or compatibility problems.
- Do not routinely disable antivirus, edit the registry, reinstall Windows, or replace PC hardware based only on 0x7E. The cited HoYoverse antivirus and system-repair suggestions concern other error codes, not this one.
How to interpret the advice
The most error-specific lead is the older community guide’s mention of Visual C++ runtimes and a clean reinstall; it is not proof of a universal cause or cure. HoYoverse’s newer file-integrity and graphics-driver guidance applies to broader PC problems rather than specifically to 0x7E. Start with reversible checks, escalate only if needed, and preserve logs if you have to ask support for help.
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