Windows user folder size less than actual size

I'm using Windows 10 (version 1803), let's denote my pc user name as abc. When I right click the folder c:\users\abc and select Properties, Windows tells me the size of this folder is 16.7 GB.

But when I open this folder c:\users\abc, select all sub-folders, like documentsdownloads, ... again right click to see properties, Windows now tells me the size is 49.2 GB, which is the actual size.

So why there is so huge the difference? BTW, this problem also happens to my dropbox folder.

 

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Last updated May 22, 2019 Views 6,753 Applies to:

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Hi Jiuzhang Chen,


Based on the test I performed in my system, when you right click the actual user folder, the size detected includes the total file size on everything on that folder, while selecting all the folder inside displays a smaller size (say due to hidden files and folders that are hidden, shortcuts, etc). This is the opposite of what you described. What's unusual is that you mentioned that this occurs as well with DropBox, which was not developed by Microsoft. Are you pertaining to the users folders as well for the issue in DropBox? Did you notice this issue prior to updating to 1803?


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Hi Ariel, thanks for your reply.

I see your point, yes, I also searched a lot on the web, and many people had the problem to the opposite of my case, but I'm sure my description matches my problem.

For the dropbox folder, it has the similar issue, parent folder size is less than the sum of all sub-folder sizes.

Also, I didn't have this issue before version 1803.

Today I found someone else who's also having this issue, you may want to read section 'Explorer bug: file enumerations' of the following post:

https://borncity.com/win/2018/05/04/windows-10-april-update-bugs-and-issues/

So, if we can confirm this is a bug of windows os, how can we solve it? Or do we have to wait for next official update? And is it necessary to officially submit this bug to microsoft? Please let me know, thanks.

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Hello Guys,

I am experiencing the same problem since I updated my windows version to 1803 (OS BUILD 17134.48). The folder size shows unrealistic smaller volume but when I dig inside and select all folders and files, I get a bigger number.

From Outside the Folder Size: 690 MB 

From Inside while selecting all content: 20.1 GB

Another File Outside size: 13.1 GB

From Inside while selecting all content: 49.5 GB

However, this might also related to Onedrive synchronization issue. I tried this day to move those exact folders into Onedrive but I experienced problem with synchronization so I undo the process and abandoned the whole idea.

I tried moving folder content to a new created folder but still experiencing the unrealistic numbers.

This is happening with certain folders not all of them.

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i have the same problem here a main folder with size of 1.53 Gb contain 3 internal folders of 8.06 Gb ... i don't Know why this happen in that folder not all other folders

 

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Hi everyone,

Sorry i don't speak english very well.


I have a similar problem. I realized this problem when I used syncback to back up files. By cons when I use the tooltip by positioning the cursor above the folder the indicated size is correct.

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I tried the TreeSize Free software and it tells me correctly the right size and the right number of files and directories.

I have observed that in many places, even on external hard disks, the windows explorer does not display the correct size. There may be differences of up to 50G for a folder whose actual size is 61G, so windows displays 6G

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I am also facing the same issue while transferred the data from my old Dell Win 10 Home Edition OS to New Dell Win 10 Pro OS. Are we waiting for confirmation of this  bug from Microsoft? 

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Hello S.PC,

 

To better assist you, kindly provide us these details:

  • What is the current build and version of your computer?
  • Have you made any recent changes on your computer prior to the issue?
  • Do you experience the issue on all your Windows folders?

 

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my laptop is : Asus N550J

windows version : windows 10 home single language with the last updates provided by Microsoft  

no changes done to my laptop .. no hardware changes or Upgrads

not all folders have this problem .. just the folder i'm talking about 

i tried to create a Main folder and copy the other folders one by one to this main folder .. found the same problem

i tried to copy files one by one also .. same problem foud

that the main folder size is less than the total folders size in side it !!

this problem found after the windows update from about 2 months 

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Hello Mohamed,

 

Both Windows Explorer and the directory list command dir /a /s display the total file and folder statistics for only those files and folders that you have permissions to access. By default, Files hidden files and protected operating system files are excluded. This behavior may cause Windows Explorer or the dir command to display inaccurate file and folder totals and size statistics. To better isolate the issue, have you checked if there are hidden files or folders on the main folder that you’re referring to?

 

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