partitioning - Shrink Windows OS partition with unmovable files

I am trying to shink Windows 7 OS partition C: but cannot shrink as much as I plan due to unmovable files. I have tried Windows own defrag tool before but it does not move files that are unmovable. Here are some ideas I have learned from previous posts, and I hope at least one of them will work and wish to know the detail how to do:

1. Inspired by this post, which
   suggests backup C:, then delete C: ,
   create a smaller partition, and then
   copy the backup to the smaller
   partition. I was wondering if anyone
   here can confirm that Windows 7 will
   still work in this way? What
   reliable tools can be used for
   backuping the system, and deleting
   and creating partition, and then
   copying back the backup in this
   method?



2. I am actually trying another way
   suggested in this post. I have
   identified what unmovable file
   currently stop further shrinking:

   
   

   
   

   \ProgramData\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer\CiFiles\00010015.wid::$DATA

   
   

   
   

   If I understand correctly, the file
   belongs to Windows Search. Can I set
   up somewhere in Windows system
   settings to temperately eliminate
   the file and similar ones (because
   there are many similar files under
   the same directory which I guess
   will also stand in the way of
   shrinking and unmovable by defrag)?




3. Any other idea that might work will also be appreciated.