Script

Find large files

List files over a size threshold, largest first.

beginner files disk

Walks a folder tree and prints files at or above the threshold. Read-only unless you pipe the output into something that deletes.

.\find-large-files.ps1 -Path .\docs -MinimumSizeMB 50

Parameters

Name	Type	Required	Description
`-Path`	string	Yes	Folder to scan.
`-MinimumSizeMB`	int	No	Size threshold in megabytes. Default 100.

Source

find-large-files.ps1

Download

<#
.SYNOPSIS
    List files larger than a given size.

.PARAMETER Path
    Folder to scan.

.PARAMETER MinimumSizeMB
    Size threshold in megabytes. Default 100.

.EXAMPLE
    .\find-large-files.ps1 -Path .\docs -MinimumSizeMB 50
#>
[CmdletBinding()]
param(
    [Parameter(Mandatory)]
    [string]$Path,

    [ValidateRange(0, 1048576)]
    [int]$MinimumSizeMB = 100
)

$ErrorActionPreference = 'Stop'

if (-not (Test-Path -LiteralPath $Path -PathType Container)) {
    throw "Folder not found: $Path"
}

$threshold = $MinimumSizeMB * 1MB

Get-ChildItem -LiteralPath $Path -Recurse -File -ErrorAction SilentlyContinue -ErrorVariable scanErrors |
    Where-Object { $_.Length -ge $threshold } |
    Sort-Object -Property Length -Descending |
    Select-Object FullName, @{ Name = 'SizeMB'; Expression = { [math]::Round($_.Length / 1MB, 2) } }, LastWriteTime

if ($scanErrors.Count -gt 0) {
    Write-Warning "$($scanErrors.Count) folder(s) skipped (access denied or unreadable)."
}

Downloaded it? Windows blocks scripts from the internet until you unblock them: Unblock-File -Path .\find-large-files.ps1. See Run a script.

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