Because i think file system is already flushed.
Are you asking how to write to a specific file? If so you need to use
FSCTL_GET_RETRIEVAL_POINTERS to get the map of the file before shutdown.
If this is a file you are creating, you need to create the file and make it
big enough for the data you plan to write.
Are you asking how to write to the raw drive? You will need to get access
to the disk and roll you own IRP’s for the request.
Note: all of this is conditional on the
IoRegisterLastChanceShutdownNotification callback allowing the work to be
done, depending on what you are trying to do exactly this may be harder than
you think.
Don Burn
Windows Driver Consulting
Website: http://www.windrvr.com
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Because i think file system is already flushed.
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Thank you Don for your reply.
Yes i want Write data to Raw Disk Sectors before shutdown