title: Deleting files on FAT32 USB changes the first cluster information
body: <p>i have made a file recovery software, which reads the FAT32 directory entry and identifies the first cluster of the file and attempts to recover the data, it is supposedly to be working fine however when i try on a fat32 usb disk the following happens.</p>
  
  <p>The Cluster number assigned to a file when it is not deleted is different from the cluster number, immediately after it is deleted. I used Disk Investigator and Tune Up Undelete to verify this, none of them w.ere able to recover the file. It was the common problem that, usually upon deleting the file's name first character is changed to 0xE5 and rest remains intact, but this is changing it's cluster information too. </p>
  
  <p>Any help?
  Can you try with your FAT32 USB and tell me what is happening?</p>
  
  <p>My OS is Windows Vista, Pen Drive is Single Partition FAT32.</p>