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How to fix the error BlockingDetectionFound, when i submit new driver for sign

linzhen 0 Reputation points
2026-03-13T03:11:21.15+00:00

when i submit new driver for sign, it retern error BlockingDetectionFound, errcode is 4001. but the driver i submit is a empty driver. it mean the driver only have driverentry, but no any other interface.

Windows development | Windows Driver Kit (WDK)
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  1. Tom Tran (WICLOUD CORPORATION) 4,765 Reputation points Microsoft External Staff Moderator
    2026-03-13T07:01:13.8066667+00:00

    Hi @linzhen ,

    Thanks for sharing your details.

    The BlockingDetectionFound (4001) error means the submission was blocked during the automated scanning stage of the driver signing process. This scan evaluates the entire submission package, not just the driver code, including the .sys, the INF, and the files included in the CAB.

    Because of that, the error can still occur even if the driver itself is minimal, for example if it only contains DriverEntry.

    The submission results unfortunately don’t show which detection rule triggered the block, so the exact cause isn’t visible from the report.

    You could try rebuilding the package and submitting again to rule out any packaging issues, such as rebuilding from a clean environment, regenerating the CAB with only the required files, and double‑checking the INF and package structure.

    If the same error continues, the next step would be to open a support request so the appropriate team can review the internal scan results and investigate further.

    If you found my response helpful or informative, I would greatly appreciate it if you could follow this guidance provide feedback. 

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