Windows 11 update KB5074109 is “breaking” modems — and Microsoft says it’s not a bug. Here’s what’s going on.

Windows 11 update KB5074109 is “breaking” modems — and Microsoft says it’s not a bug. Here’s what’s going on.

The January 2026 Security Update breaks some modems, but it is not a bug. Microsoft removed legacy drivers for security reasons. Here is what happened.

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