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Defrag Freespace fragments files


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Edit March 12:

Defragging a drive or files, followed by defragging freespace and then analyzing, reports some (1 to 40) fragmented files always with two fragments each. File sizes are from about 1000KB to over 1GB. Defragging these files, followed by defragging freespace and then analyzing, reports the same files, fragments, and sizes. Defragging freespace again without defragging files can fragment even more files with two fragments each.

 

Some of the resulting fragmented file sizes are reported incorrectly. For examples: Defraggler reports 3,386KB but Windows Explorer reports 2,222,453KB; Defraggler reports 2,124KB but Windows Explorer reports 5,076,084KB. Defrag Freespace might be making a small fragment and reporting only its size, plus a large fragment for the rest of a file. But Defraggler also reports some correct sizes for the files it fragments. Maybe there are two bugs here? 

 

These are on non-system drives having a majority of photo and video files; and with archive, backup, and image files at the end. Drives are a Seagate ST2000DM001 2TB drive with USB 3.0 interface, 98% full; a Seagate ST6000NM0024 6TB drive with SATA III interface, 80% full; a Samsung Story Station Plus 1.5TB drive with USB 2.0 interface, 93% full; and a Hitachi HDTD205 500GB portable drive with USB 3.0 interface, 65% full. File systems are NTFS. All drives are healthy and operate well.

 

OS is Windows 7 Pro SP1 (64-bit). System drive (C:) is Intel DC S3700 400GB. Defraggler version is 2.21.993 (64-bit).

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