: "Driver failed to start – Error 39" (Windows 10) Fix : Enable Test Mode ( bcdedit /set testsigning on ) and disable Secure Boot in BIOS.
Here is a full post breakdown covering what it is, how it’s typically used, and the common hurdles you might face today. multikey 18.2.2
Ensure your .reg dump matches your specific software version. : "Driver failed to start – Error 39"
KeyID.Version – e.g., KEK_tenantA.v3