Windows · PowerShell

Find the 20 Largest Files on Windows

Lists the 20 largest files under C:\Users with path and size. Use it to find why a disk is full.

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Windows18
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Last reviewed: November 6, 2026

CODE

Script

find-large-files-windows.ps1

Get-ChildItem 'C:\Users' -Recurse -File -Force -ErrorAction SilentlyContinue |
    Sort-Object Length -Descending |
    Select-Object -First 20 @{ Name = 'SizeMB'; Expression = { [math]::Round($_.Length / 1MB, 1) } }, FullName |
    Format-Table -AutoSize | Out-String -Width 300

Caution: Running a script is a sensitive action. Do not run code you have not read. A non-zero exit code shows as a failure in Moftgate output.

HOW IT WORKS

Run it on every device with Moftgate

01
Add the script
In the Moftgate console, open Scripts > New script and paste the code.
02
Select the OS
Select Windows as the target operating system.
03
Test it
Run it on one test device first and read the output.
04
Roll out
Send it to all targets by group, profile or tag. Each device result is recorded separately.