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I am often doing some cleanup in hard drives and I always want to know the size of each Folder in a directory in Explorer.
Each time i need to run a dir to know the folder size. I noticed that there is that option in windows explorer but why does the size of thoses folders is never showing up?

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Thanks for your help

Oliver Salzburg
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Delbane
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2 Answers2

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That is intended behavior by Microsoft. There would be to much I/O disk access. every time you open a folder it would start calculating the sizes of the folders making for slower loading of windows. Imagine it trying to calculate the Windows folder. Basically It just isn't used so the system is faster.

jmc302005
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As @jmc302005 said, this simply isn't possible, and that's intentional.

Try this, it's an excellent way to get an overview of what's eating up you're space
WinDirStat - Windows Directory Statistics

Just run and it and look for the big blocks in the treemap, then go clean them up if you can and run it again to see the impact it's had, simple :)

EDIT
I think the reason the file size column exists is because the data is available on individual files, so a folder with files and folders in it would need the column there for the individual files.

As a result it would be a waste of time (and processing power) to program the function to not provide the column if there happens to be no files in the folder, only more folders. Especially considering the fact that you could add or remove files at any time.

CLockeWork
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