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#11
That command shuts your system down, makes a boot trace and records the files accessed (with their order of access) during start up (even after logging in upto 1 or 2 minutes). The command then uses the Windows inbuilt defragmenter to arrange those files and moves them to the beginning of the disk (fastest disk access zone) and physically arranges them in the order of access (which was recorded in the trace) so as to reduce disk seek time as much as possible, which results in the fastest loading of files possible, thus reducing boot time.
After this is done, the further restarts trains superfetch to load the files in the fastest way possible by making traces again and again. Thus Windows ultimately learns in what order to load the startup files so that time required is minimum (and they were already physically arranged on the HD after the second reboot the best possible way and in the fastest disk access zone, i.e the outer tracks of the disk).
There are a total of 6 reboots. Summarizing:
Command run - System reboots - 1st trace is made - windows defragmenter is run and files are arranged as already explained - system reboots - another trace is made - superfetch is trained to load files the the best and fastest possible way - this is repeated 4 times - process finishes.
I hope this explains and answers all questions raised and puts down all pointed fingers being pointed at me.
Thanks for understanding. And I was NOT being rude.