<# .SYNOPSIS Creates a bootable Windows 7 USB drive from an ISO file. .DESCRIPTION This script formats a USB drive, makes it bootable (MBR + NTFS), and copies all Windows 7 setup files from an ISO. .NOTES Version: 1.0 Author: Generated for Windows 7 USB creation Requires: Administrative privileges, USB drive (4GB+ for 32-bit, 8GB+ for 64-bit) #>
# Wait for drive to be ready Start-Sleep -Seconds 3 windows 7 portable usb
# Stop on errors $ErrorActionPreference = "Stop" Better to guide user Write-Host "Windows 7 cannot
Write-Host "USB disk number: $diskNumber" -ForegroundColor Green makes it bootable (MBR + NTFS)
# Mount ISO (works on Windows 8+; on Windows 7 use alternative) $mountDrive = $null if ($PSVersionTable.PSVersion.Major -ge 6 -or [Environment]::OSVersion.Version.Major -ge 10) # Windows 10/11/Server 2016+ or PowerShell 6+ $mount = Mount-DiskImage -ImagePath $IsoPath -PassThru $mountDrive = ($mount else # Windows 7 fallback: use 7-Zip or mount via free tool? Better to guide user Write-Host "Windows 7 cannot natively mount ISO. Please extract ISO contents to a folder first." -ForegroundColor Yellow $extractedPath = Read-Host "Enter path to extracted ISO folder (or press Enter to use 7-Zip automatically if installed)" if (-not $extractedPath) Select-Object -First 1 if ($7z) $tempExtract = Join-Path $env:TEMP "win7usb_iso_extract" Remove-Item $tempExtract -Recurse -Force -ErrorAction SilentlyContinue New-Item -ItemType Directory -Path $tempExtract -Force else Write-Host "Please install 7-Zip or manually extract ISO contents and rerun." -ForegroundColor Red exit 1 else $mountDrive = $extractedPath
It works on Windows 7 itself (with PowerShell 2.0+) or newer Windows versions.