Xp Pro SP2 disk space reporting

[Sean Bond]

Hi,

I have recently copied 29GB of data from my physical D: backup drive to my
physical C: drive. The copy completed successfully.

C: drive (NTFS) consists of around 20GB of data.

I reformatted the D: drive (NTFS) and moved the 29GB of data back from the
C: drive to the D: drive.

I now have a situation where my C: drive still reports 49GB of used disk
space when this is not the case. Chkdsk reports errors but fails to fix them
with the /F option. The Chkdsk results are shown below:

Any ideas as to why this is happening?

Thanks,

Sean

The type of the file system is NTFS.
Volume label is CDRIVE.

WARNING! F parameter not specified.
Running CHKDSK in read-only mode.

CHKDSK is verifying files (stage 1 of 3)...
File verification completed.
CHKDSK is verifying indexes (stage 2 of 3)...
Index verification completed.
Detected minor inconsistencies on the drive. This is not a corruption.
CHKDSK is verifying security descriptors (stage 3 of 3)...
Security descriptor verification completed.
CHKDSK discovered free space marked as allocated in the volume bitmap.
Windows found problems with the file system.
Run CHKDSK with the /F (fix) option to correct these.

120053713 KB total disk space.
51554600 KB in 65639 files.
18760 KB in 4298 indexes.
0 KB in bad sectors.
143689 KB in use by the system.
65536 KB occupied by the log file.
68336664 KB available on disk.

4096 bytes in each allocation unit.
30013428 total allocation units on disk.
17084166 allocation units available on disk.

 

[Sean Bond]

More information:

I have found that the lost disk space is the result of moving the files from
the C: drive to the D: drive. If I copy the files and then delete the files
on C: drive the disk space is released.

Something is very wrong here.

 

[Rick \Nutcase\ Rogers]

Hi Sean,

Read the section in the article below on MFT expansion as to why this
happens:

How to Locate and Correct Disk Space Problems on NTFS Volumes in Windows XP
http://support.microsoft.com/?kbid=315688

--
Best of Luck,

Rick Rogers, aka "Nutcase" - Microsoft MVP

Associate Expert - WindowsXP Expert Zone

Windows help - www.rickrogers.org

 

[Guest]

This is the reason that I always Copy then Delete rather than Move. There's
too much chance of something going wrong and corrupting the moved files.