Windows File Explorer Not Showing Folder Size

As far as I know Explorer never showed the file size for floders only for files. I Assume this is cause excess of calculations that had to be performed since even when you right click a big folder and go to properties it sometimes takes a long time to show the folder size.

Hi Abhijeet

Windows File Explorer cannot and never could show folder sizes, it is a feature that is seriously lacking for years . ..

Click the link below to download a small free utility called Treesize. Using that tool, you will instantly and accurately see where this space is being used

https://www.jam-software.com/treesize_free/

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I EASILY reproduced it and submitted a bug with an analysis using the Feedback hub. The problem is file explorer stops summing the total size if it encounters a path that's >= 260 characters. My bug report included some powershell code that shows the real tree size, and repros the incorrect tree size if it stopped summing when it hit a long pathname. The resulting calculated tree size from the PS repro experiment came very close to the size reported by explorer.

Simple PS code to sum a tree is:

(Get-ChildItem -Path C:\Users\aUsername\ -recurse -force) | Measure-Object -sum -Property Length

Code to repro this issue is:

$size = 0; $done = $false; Get-ChildItem -Path C:\Users\aUsername\ -recurse -force | ForEach-Object {if (($_

.Fullname).Length -ge 260) {$done = $true} elseif (!$done) {$size += $_.Length}};$size

A big boundary in calculated size happens at >= 260. I have 100 gigabytes in my download directory, which explorer ignores.

My system has files named like below, which I'm assuming are Edge related:

C:\Users\aUsername\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\MicrosoftEdge\User\Default\RACShare\Microsoft\Crypto\TokenBindingKeys\Keys\****3fa

Hi AbhijeetKarlekar

to see the folder size in file explorer you need to right click on the folder and select properties. laborious if you are trying to compare files.

treesize is a better option for comparing folder sizes

https://www.jam-software.com/treesize_free/

Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

Hello Abhijeet,

I'm Independent Advisor and Microsoft MVP, here to help you with your question.

Try resetting File Explorer (explorer.exe) Process:

1. Press Windows Key + R and type SYSDM.CPL in Run. Click OK or press Enter key.
2. In System Properties window, switch to Advanced tab, click Settings under Performance.
3. Next, in Performance Options, under Processor scheduling, make sure that Adjust for best performance of: is set to Programs.
4. Then in the same window, under Virtual memory, click Settings button.
5. On Virtual Memory page, make sure Automatically manage paging file sizes for all drives option is checked. Click OK, then Apply, OK on rest of windows.
6. Reboot the machine and see if issue is resolved now.

Let us know if this helps!

Reference: https://www.kapilarya.com/fix-file-explorer-not...

Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.