Qt6Quick.dll Error

Hi everyone!

Any idea why this is happening and how to resolve it?

Welcome to the Forum

What release if Windows do you have?

This looks like a corrupted file or installation. The error number usually means “Bad Image” and that is a sign of corruption or incompatibility.

Have you tried removing the installation and reinstall it?

Another possible cause can be a Windows system that is running in “Windows S” mode. This is some kind of “secure” Windows and, as far as I know, some devices come configured like that.

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It seems to be a problem with the latest Windows security update (2026-01 Security Update (KB5074109) (26200.7623)).

As soon as you mentioned Windows, I rolled back this security update out of curiosity, and that resolved the issue.

Thanks! I just hope this doesn’t become an issue in the next update as well?