can you give an example of the file/files in question?
it may help members help you...
I have a WD VelociRaptor 10kRpm Hard Drive, that softly clicks Furiously upon the next days Cold startup (the HD activity light blinks Rapidly too).
I have no idea what files are being processed...?
I also have similar HD activity the next day after a manual Windows Update?
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Defrag TIP (mostly from my KIS forum)!-
This is also why I Never defrag at the end of the day (Analyze the next day will show a Badly fragmented HD!), but Only after a cold startup (3d no-activity reboot)/
disconnect from internet/temp disable AV (Self-Protection for KIS... too)/Show Hidden Files & Protected OS (also allows indexes/System files... to be compacted...), & Defrag- Run As Admin!-
I also wait 1min+... between All of these steps, for HD activity to settle down..., print this out, and a digital kitchen timer Is a Must!
-Now reverse the above..., and reboot Twice Before Any activity.
Full Performance won't show until After the next days Cold Startup (3d no-activity reboot!).