Accesibility of HKLM\Software Registry Tree from boot start drivers

I use RtlQueryRegistryValues to get few values from the registry which are under HKLM\Software from my driver which starts during boot time (start = 0). This routine always returns STATUS_OBJECT_NAME_NOT_FOUND. The solution for this is to place the values under HKLM\System, which is not possible NOW, don’t ask why!

Can you recommend me a way other than polling to find out whether HKLM\Software Hive has arrived. A callback solution would be ideal, though anything other than polling will do…

Best Regards,


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[this was crossposted to NTFSD]