There has been a customer report that a recent Windows security update can impact the behavior Spectrum Digital XDS560v2 USB where the driver for it can not be loaded my the system.

As per customer analysis: "The April 2026 update removes default kernel-mode trust for drivers signed under the legacy cross-signed certificate program, and now requires WHCP signing. Because sdusb2em.sys was signed under the old cross-signed program, its signature is treated as untrusted and the Windows Driver Policy blocks it at the kernel level."

Hence a WHCP-signed XDS560v2 USB driver is needed to resolve this issue.