In this post, you’ll learn more about the Error SPAPI_E_DI_POSTPROCESSING_REQUIRED – 0x800F0226 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
SPAPI_E_DI_POSTPROCESSING_REQUIRED – 0x800F0226
Win32 COM Error Error Description
The device’s co-installer has additional work to perform after installation is complete.