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Possible Duplicates:
How to find disk usage of folders in Windows
Best program to visualize file system usage on Windows?
What’s using up my disk space?
Windows 7 - mysteriously missing free HDD space

C: is getting really really low. :P

I used to use a program from to do this task (it has since expired), but I need a nice free application that looks at one of my drives and tells me how big each folder is and where all my space has gone.

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migrated from Oct 29 '09 at 5:25

This question came from our site for system and network administrators.

marked as duplicate by Arjan, BinaryMisfit Oct 29 '09 at 10:10

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

3 is probably a better place for this. – Josh Oct 29 '09 at 2:47
+1 for superuser – kolypto Oct 29 '09 at 3:29

SpaceMonger isn't bad (referring to Barden's suggestion), but I also like WinDirStat. It's OpenSource. I even use it on my servers. It can scan network drives too and gives a nice graphical output that shows files as multicolored blocks. Take a look at the site for screenshots.

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+1 windirstat rocks – DigitalRoss Oct 29 '09 at 3:31
@DigitalRoss: Indeed it does. I just wish it wasn't a dormant project. =( – Wesley Oct 29 '09 at 3:34
So I downloaded it and yes, it actually rocks :-) – user4954 Nov 6 '09 at 3:03

TreeSize Free works well. They have paid Personal and Pro versions, too.

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+1!! I didn't know they made a free version. – Wesley Oct 29 '09 at 3:35

Eversince SpaceMonger went paid, I went with SpaceSniffer. It does the same type of analysis and visualisation.

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I still like the free version of spacemonger. I'm sure the new one is great but the freeware one does the trick for us:

It's graphical so its easy to spot big files and you can open directories from it's inteface. I haven't had any problem running it from x64 or x86 windows.

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I use SequoiaView for Windows machine. The fastest among free ones. and its GUI is easy to see.

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