The Windows 10 Anniversary Update is finally here and it comes with some driver signing changes. After upgrading your Windows 10 to the latest version (1607, also known as Windows 10 Anniversary Update), all new kernel mode drivers will need to be digitally signed by and submitted to the Windows Hardware Developer Center Dashboard portal.
Windows 10: Driver Signing Changes
Windows 10 version 1607 will only load Kernel mode drivers that are digitally signed by the Dev Portal. Keep in mind that these changes will only affect the new installation of the OS with secure boot on. In other words, the non-upgraded fresh installation will need drivers that are signed by Microsoft or else they will not function.
TIP: The drivers that have been issued before July 29, 2016 will keep working in Windows 10 even after you upgrade it to version 1607.
Here are the major exceptions that the new signing policy comes with:
– Computers that have upgraded to Windows 10 Build 1607 from a previous Windows 10 OS will NOT be affected by this change
– Computers that have secure boot off or without secure boot functionality will not be affected by this
– All the drivers that have been signed before July 29, 2016 will continue to work without any problems
– These changes only affects Windows 10 version 1607, meaning that all the previous version of the operating system will NOT be affected
– Boot drivers will be removed from the Program Compatibility Assistant, but they will not be blocked (in order to prevent systems from failing to boot)
How To Make A Driver To Function On Windows 10 Version 1607 (For Developers)
In case you are searching for a way to sign a driver compatible with all Windows versions, then you will need to first run the HLK tests for the latest Windows 10 version (1607) and the HCK tests for Windows 8.1 and all other older versions. Once you do this, you just need to merge the two logs and submit the merged results to HLG and HCK tests along with the driver. Finally, submit it to the Windows Hardware Developer Center Dashboard portal.
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