CcPurgeCacheSection

Hi all!
I tried implement CcPurgeCacheSection in my file system filter driver.
It was ok before but suddenly it stop working as I expect.
The function is successful but the file is not re-read from the disk.
The only change I’ve done as remember is that I reinstall Windows with SP5.
Now the only way to remove the SP5 is to reinstall Windows again.
Do you think that SP5 can be the reason for the above effect of
CcPurgeCacheSection?
Thanks
Best
Jack


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