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Missing Disk Space


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#1 dpskala

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Posted 20 May 2007 - 10:15 PM

I'm running XP Pro SP1 on a Dell 450 MHz machine, 576 MB memory, 40 GB System CD. When I look at the properties of my system drive (C:), it tells me I'm using 13.2 GB; yet when I add up the sizes of the dirs/files in C:, they only add up to about 9 GB. Where is the missing 4 GB?

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#2 tg1911

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Posted 20 May 2007 - 10:56 PM

Are you counting the System, and hidden files?
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#3 Ronbo

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Posted 20 May 2007 - 11:18 PM

Hi dpskala, :thumbsup: to BC

The amount missing kind of seems like it might be the system restore files. They are set to 10 or 12% by default.
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#4 dpskala

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Posted 20 May 2007 - 11:49 PM

Are you counting the System, and hidden files?


Well I did add in the C:\WINDOWS space. I forgot to mention in my post that I had just done a full disk cleanup. What files are hidden, and how can you see them?

#5 dpskala

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Posted 20 May 2007 - 11:54 PM

Hi dpskala, :thumbsup: to BC

The amount missing kind of seems like it might be the system restore files. They are set to 10 or 12% by default.


Yeah, that could be. I installed about 16 Microsoft patches, and restore gives me a line for each one, like there is a separate file created after each patch.

#6 tg1911

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Posted 21 May 2007 - 12:20 AM

What files are hidden, and how can you see them?

1. Close all programs so that you are at your desktop.
2. Double-click on the "My Computer" icon.
3. Select the "Tools" menu, and click "Folder Options".
4. After the new window appears, select the "View" tab.
5. Under the "Hidden files and folders" section, select the radio button labeled, "Show hidden files and folders".
6. Remove the checkmark from the checkbox labeled, "Hide file extensions for known file types".
7. Remove the checkmark from the checkbox labeled, "Hide protected operating system files".
8. Click the "Apply" button, then the "OK" button, and exit My Computer.
9. Now your computer is configured, to show all hidden files.
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#7 Budapest

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Posted 21 May 2007 - 12:54 AM

Check out SequoiaView, it will let you see what is taking up the space on your HDD.

SequoiaView uses a visualization technique called cushion treemaps to provide you with a single picture of the entire contents of your hard drive


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#8 dpskala

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Posted 21 May 2007 - 05:25 AM

Check out SequoiaView, it will let you see what is taking up the space on your HDD.

SequoiaView uses a visualization technique called cushion treemaps to provide you with a single picture of the entire contents of your hard drive


Thanks -- I just downloaded it. Looks pretty useful. I'll give it a try this morning.

#9 dpskala

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Posted 21 May 2007 - 06:36 AM

What files are hidden, and how can you see them?

1. Close all programs so that you are at your desktop.
2. Double-click on the "My Computer" icon.
3. Select the "Tools" menu, and click "Folder Options".
4. After the new window appears, select the "View" tab.
5. Under the "Hidden files and folders" section, select the radio button labeled, "Show hidden files and folders".
6. Remove the checkmark from the checkbox labeled, "Hide file extensions for known file types".
7. Remove the checkmark from the checkbox labeled, "Hide protected operating system files".
8. Click the "Apply" button, then the "OK" button, and exit My Computer.
9. Now your computer is configured, to show all hidden files.


OK, thanks. I did that, but the totals under 'Properties' do not change, and the sum of the folder sizes still is somewhat less than that of C:. Someone suggested to remove old restore points, which I did. That removed almost 1 GB, which leaves me with only about 1 GB unaccounted for now. A bit of weirdness here -- when I did the restore point removal, It hung up and became unresponsive. I had to kill it with Task Manager. I ran system restore to check on the restore points, and they are apparently gone. Only the most recent one shows. But my formerly FAT32 file system on C: has been magically converted to NTFS!

#10 Qdon

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Posted 21 May 2007 - 10:40 PM

If you are using FAT32, you may have some of the disk in 'overhang.' This occurs when a file doesn't fill a sector completely, but the rest of the sector is removed from available space.

#11 dpskala

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Posted 22 May 2007 - 06:16 AM

Nope, using NTFS. Something I did along the way auto-converted me from FAT32, which I don't mind. Some of the missing space was used in Windows restore points. They apparently use a fair amount of disk space. Dunno where the rest of it is.

#12 Budapest

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Posted 22 May 2007 - 06:37 AM

The missing space may be taken up by the MFT Zone. See this article for more information.

I also note that in your first post you said you had SP1. You should upgrade to SP2, otherwise you're asking for trouble.
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#13 dpskala

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Posted 22 May 2007 - 07:55 AM

The missing space may be taken up by the MFT Zone. See this article for more information.

I also note that in your first post you said you had SP1. You should upgrade to SP2, otherwise you're asking for trouble.


Done!

#14 usasma

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Posted 22 May 2007 - 08:27 AM

2 other major files on the system (dunno if you've seen them in your searches) are pagefile.sys (your pagefile - it's roughly 1.5 times the size of your RAM) and hiberfil.sys (the saved file when the system hibernates). Both can be well over 1 gB in size.
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#15 dpskala

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Posted 22 May 2007 - 01:43 PM

2 other major files on the system (dunno if you've seen them in your searches) are pagefile.sys (your pagefile - it's roughly 1.5 times the size of your RAM) and hiberfil.sys (the saved file when the system hibernates). Both can be well over 1 gB in size.


No I haven't. These are quite a surprise to someone whose first hard drive was 20 MB.




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