From 7948201e1826ed4bb6e17a0f0d89194c00de6007 Mon Sep 17 00:00:00 2001
From: rbalsleyMSFT <53497092+rbalsleyMSFT@users.noreply.github.com>
Date: Sat, 29 Nov 2025 18:44:34 -0800
Subject: [PATCH] Replace web request with BITS transfer for ESD downloads

Switches from using Invoke-WebRequest to Start-BitsTransferWithRetry for downloading Windows ESD files. This provides better reliability and automatic retry handling for large file downloads.

Also removes trailing blank lines for cleaner formatting.
---
 FFUDevelopment/BuildFFUVM.ps1 | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/FFUDevelopment/BuildFFUVM.ps1 b/FFUDevelopment/BuildFFUVM.ps1
index a878ff7..e0a253d 100644
--- a/FFUDevelopment/BuildFFUVM.ps1
+++ b/FFUDevelopment/BuildFFUVM.ps1
@@ -2023,7 +2023,7 @@ function Get-WindowsESD {
                 $OriginalVerbosePreference = $VerbosePreference
                 $VerbosePreference = 'SilentlyContinue'
                 Mark-DownloadInProgress -FFUDevelopmentPath $FFUDevelopmentPath -TargetPath $esdFilePath
-                Invoke-WebRequest -Uri $file.FilePath -OutFile $esdFilePath -Headers $Headers -UserAgent $UserAgent
+                Start-BitsTransferWithRetry -Source $file.FilePath -Destination $esdFilePath
                 Clear-DownloadInProgress -FFUDevelopmentPath $FFUDevelopmentPath -TargetPath $esdFilePath
                 $VerbosePreference = $OriginalVerbosePreference
                 WriteLog "Download succeeded"
@@ -2037,8 +2037,6 @@ function Get-WindowsESD {
     }
 }
 
-
-
 function Get-ODTURL {
     try {
         [String]$ODTPage = Invoke-WebRequest 'https://www.microsoft.com/en-us/download/details.aspx?id=49117' -Headers $Headers -UserAgent $UserAgent -ErrorAction Stop