I'm having a problem with app Notmyfault

Michal Šrotýř 0 Reputation points
2026-02-23T19:36:47.6966667+00:00

Hello I wanna install Notmyfault but when i launch the .exe file it says "Can't load

myfault.sys. The system cannot find the file specified."

Windows for home | Previous Windows versions | Apps

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  1. AI answer

    2026-02-23T19:36:58.5666667+00:00

    The error message you are encountering, "Can't load myfault.sys. The system cannot find the file specified," suggests that the NotMyFault application is unable to locate its necessary driver file, myfault.sys. Here are a few steps you can take to troubleshoot this issue:

    1. Ensure Proper Installation: Make sure that you have downloaded the complete NotMyFault package. Sometimes, files can be missing if the download was interrupted or incomplete.
    2. Run as Administrator: NotMyFault requires administrative privileges to function correctly. Right-click on the NotMyFault executable and select "Run as administrator" to see if that resolves the issue.
    3. Check for the Driver: Look in the directory where NotMyFault is installed to see if myfault.sys is present. If it is missing, you may need to re-download the application to ensure all files are included.
    4. Compatibility Issues: Ensure that you are using a compatible version of NotMyFault for your operating system. The tool includes both 32-bit and 64-bit versions, so make sure you are using the correct one for your system.

    If these steps do not resolve the issue, consider checking the documentation or support resources for NotMyFault for further assistance.

    References:

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  2. Thomas4-N 21,665 Reputation points Microsoft External Staff Moderator
    2026-03-14T13:06:15.14+00:00

    Hello Michal Šrotýř,

    It's worth noting that NotMyFault is a Microsoft Sysinternals tool that is actively maintained and designed for modern, supported versions of Windows. Windows 7, however, reached end of life in January 2020 — it's an older OS with different underlying architecture and system components compared to what the tool is built against. The myfault.sys driver simply may not be compatible with Windows 7's kernel environment, and since the OS itself is no longer supported, there's no fix or update path for this. The standard steps (re-downloading, run as admin, 32/64-bit match) are worth a quick try but unlikely to resolve a deeper architecture mismatch. If you rely on NotMyFault regularly, it runs without issues on Windows 10 and 11 — that would be the recommended path forward.

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