Issue
- Update of your ESET Windows home or small office product ended with an error
- You received the "General Compiler Error" message after upgrading to a new version of the ESET Windows home and small office products
- Your ESET product displays a warning "Modules update failed" as shown below:

Solution
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Verify that your internet connection is active by visiting the main ESET web page. You must have an active internet connection before you can download updates.
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Press the F5 key to open Advanced setup.
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Click Updates → Clear → OK.
Figure 1-1 -
Restart your computer.
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Click Update → Check for updates.
Figure 1-2 -
If the issue persists, see Troubleshooting for Modules update failed message (Windows) and follow the instructions.