Changing driver version or driver date might break Windows Update functionality. For example, changing information related to the INF file invalidates information about driver files that are associated with such properties as device and driver signing information. Direct modification of these properties might invalidate the device's installation state. These device properties represent a device's installation state. You must not modify the values of the following registry entries ( device properties) in a device's software key: Modifying Registry Values in a Device's Software Key Kernel-mode callers should use IoOpenDeviceRegistryKey and set the DevInstKeyType parameter to PLUGPLAY_REGKEY_DRIVER. To create a software key, use CM_Open_DevNode_Key with a Disposition of RegDisposition_OpenAlways and ulFlags containing CM_REGISTRY_SOFTWARE or use SetupDiCreateDevRegKey and KeyType parameter of DIREG_DRV. To open an existing software key, use CM_Open_DevNode_Key with a Disposition of RegDisposition_OpenExisting and ulFlags containing CM_REGISTRY_SOFTWARE or use SetupDiOpenDevRegKey and KeyType parameter of DIREG_DRV. For more information about how to specify access permissions for registry access, see Accessing Registry Keys Safely. You must not set this parameter to KEY_ALL_ACCESS. You must set the parameter where you provide the requested security access to the minimal access permissions that are required.
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