diff --git a/images/win/scripts/ImageHelpers/ImageHelpers.psm1 b/images/win/scripts/ImageHelpers/ImageHelpers.psm1
index 2b716880..94ff7b20 100644
--- a/images/win/scripts/ImageHelpers/ImageHelpers.psm1
+++ b/images/win/scripts/ImageHelpers/ImageHelpers.psm1
@@ -14,6 +14,7 @@ Export-ModuleMember -Function @(
     'Get-SystemVariable'
     'Set-SystemVariable'
     'Install-Binary'
+    'Install-VisualStudio'
     'Get-ToolcachePackages'
     'Get-ToolsetContent'
     'Get-ToolsByName'
diff --git a/images/win/scripts/ImageHelpers/InstallHelpers.ps1 b/images/win/scripts/ImageHelpers/InstallHelpers.ps1
index c8d70c8b..8ec49e0d 100644
--- a/images/win/scripts/ImageHelpers/InstallHelpers.ps1
+++ b/images/win/scripts/ImageHelpers/InstallHelpers.ps1
@@ -20,7 +20,8 @@ function Install-Binary
         Install-Binary -Url "https://go.microsoft.com/fwlink/p/?linkid=2083338" -Name "winsdksetup.exe" -ArgumentList ("/features", "+", "/quiet")
     #>
 
-    Param (
+    Param
+    (
         [Parameter(Mandatory)]
         [String] $Url,
         [Parameter(Mandatory)]
@@ -62,6 +63,68 @@ function Install-Binary
     }
 }
 
+Function Install-VisualStudio
+{
+    <#
+    .SYNOPSIS
+        A helper function to install Visual Studio.
+
+    .DESCRIPTION
+        Prepare system environment, and install Visual Studio bootstrapper with selected workloads.
+
+    .PARAMETER BootstrapperUrl
+        The URL from which the bootstrapper will be downloaded. Required parameter.
+
+    .PARAMETER WorkLoads
+        The string that contain workloads that will be passed to the installer.
+    #>
+
+    Param
+    (
+        [Parameter(Mandatory)]
+        [String] $BootstrapperUrl,
+        [String] $WorkLoads
+    )
+
+    Write-Host "Downloading Bootstrapper ..."
+    $BootstrapperName = [IO.Path]::GetFileName($BootstrapperUrl)
+    $bootstrapperFilePath = Start-DownloadWithRetry -Url $BootstrapperUrl -Name $BootstrapperName
+
+    try
+    {
+        Write-Host "Enable short name support on Windows needed for Xamarin Android AOT, defaults appear to have been changed in Azure VMs"
+        $shortNameEnableProcess = Start-Process -FilePath fsutil.exe -ArgumentList ('8dot3name', 'set', '0') -Wait -PassThru
+
+        $shortNameEnableExitCode = $shortNameEnableProcess.ExitCode
+        if ($shortNameEnableExitCode -ne 0)
+        {
+            Write-Host "Enabling short name support on Windows failed. This needs to be enabled prior to VS 2017 install for Xamarin Andriod AOT to work."
+            exit $shortNameEnableExitCode
+        }
+
+        Write-Host "Starting Install ..."
+        $bootstrapperArgumentList = ('/c', $bootstrapperFilePath, $WorkLoads, '--quiet', '--norestart', '--wait', '--nocache' )
+        $process = Start-Process -FilePath cmd.exe -ArgumentList $bootstrapperArgumentList -Wait -PassThru
+
+        $exitCode = $process.ExitCode
+        if ($exitCode -eq 0 -or $exitCode -eq 3010)
+        {
+            Write-Host "Installation successful"
+            return $exitCode
+        }
+        else
+        {
+            Write-Host "Non zero exit code returned by the installation process : $exitCode"
+            exit $exitCode
+        }
+    }
+    catch
+    {
+        Write-Host "Failed to install Visual Studio; $($_.Exception.Message)"
+        exit -1
+    }
+}
+
 function Stop-SvcWithErrHandling
 {
     <#
@@ -74,7 +137,8 @@ function Stop-SvcWithErrHandling
     .PARAMETER StopOnError
         Switch for stopping the script and exit from PowerShell if one service is absent
     #>
-    param (
+    param
+    (
         [Parameter(Mandatory, ValueFromPipeLine = $true)]
         [string] $ServiceName,
         [switch] $StopOnError
@@ -123,7 +187,8 @@ function Set-SvcWithErrHandling
         Hashtable for service arguments
     #>
 
-    param (
+    param
+    (
         [Parameter(Mandatory, ValueFromPipeLine = $true)]
         [string] $ServiceName,
         [Parameter(Mandatory)]
@@ -152,7 +217,8 @@ function Set-SvcWithErrHandling
 
 function Start-DownloadWithRetry
 {
-    param (
+    param
+    (
         [Parameter(Mandatory)]
         [string] $Url,
         [Parameter(Mandatory)]
@@ -253,7 +319,8 @@ function Install-VsixExtension
 
 function Get-VSExtensionVersion
 {
-    param (
+    Param
+    (
         [Parameter(Mandatory=$true)]
         [string] $packageName
     )
@@ -289,7 +356,8 @@ function Get-ToolsetContent {
 }
 
 function Get-ToolsByName {
-    param (
+    Param
+    (
         [Parameter(Mandatory = $True)]
         [string]$SoftwareName
     )
diff --git a/images/win/scripts/Installers/Install-DotnetSDK.ps1 b/images/win/scripts/Installers/Install-DotnetSDK.ps1
index 57d7668c..7668e7c2 100644
--- a/images/win/scripts/Installers/Install-DotnetSDK.ps1
+++ b/images/win/scripts/Installers/Install-DotnetSDK.ps1
@@ -32,7 +32,10 @@ function InstallSDKVersion (
     }
 
     # Fix for issue 1276.  This will be fixed in 3.1.
-    Invoke-WebRequest -Uri "https://raw.githubusercontent.com/dotnet/sdk/82bc30c99f1325dfaa7ad450be96857a4fca2845/src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.Sdk.ImportPublishProfile.targets" -outfile "C:\Program Files\dotnet\sdk\$sdkVersion\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.ImportPublishProfile.targets"
+    $sdkTargetsName = "Microsoft.NET.Sdk.ImportPublishProfile.targets"
+    $sdkTargetsUrl = "https://raw.githubusercontent.com/dotnet/sdk/82bc30c99f1325dfaa7ad450be96857a4fca2845/src/Tasks/Microsoft.NET.Build.Tasks/targets/${sdkTargetsName}"
+    $sdkTargetsPath = "C:\Program Files\dotnet\sdk\$sdkVersion\Sdks\Microsoft.NET.Sdk\targets"
+    Start-DownloadWithRetry -Url $sdkTargetsUrl -DownloadPath $sdkTargetsPath -Name $sdkTargetsName
 
     # warm up dotnet for first time experience
     $templates | ForEach-Object {
@@ -49,8 +52,10 @@ function InstallSDKVersion (
 
 function InstallAllValidSdks()
 {
-    Invoke-WebRequest -Uri 'https://raw.githubusercontent.com/dotnet/core/master/release-notes/releases-index.json' -UseBasicParsing -OutFile 'releases-index.json'
-    $dotnetChannels = Get-Content -Path 'releases-index.json' | ConvertFrom-Json
+    $releaseIndexName = "releases-index.json"
+    $releaseIndexUrl = "https://raw.githubusercontent.com/dotnet/core/master/release-notes/${releaseIndexName}"
+    $releasesIndexPath = Start-DownloadWithRetry -Url $releaseIndexUrl -Name $releaseIndexName
+    $dotnetChannels = Get-Content -Path $releasesIndexPath | ConvertFrom-Json
 
     # Consider all channels except preview/eol channels.
     # Sort the channels in ascending order
@@ -58,13 +63,15 @@ function InstallAllValidSdks()
     $dotnetChannels = $dotnetChannels.'releases-index' | Where-Object { (!$_."support-phase".Equals('preview') -and !$_."support-phase".Equals('eol')) -or ($_."channel-version" -eq "2.2") } | Sort-Object { [Version] $_."channel-version" }
 
     # Download installation script.
-    Invoke-WebRequest -Uri 'https://dot.net/v1/dotnet-install.ps1' -UseBasicParsing -OutFile 'dotnet-install.ps1'
+    $installationName = "dotnet-install.ps1"
+    $installationUrl = "https://dot.net/v1/${installationName}"
+    Start-DownloadWithRetry -Url $installationUrl -Name $installationName -DownloadPath ".\"
 
     ForEach ($dotnetChannel in $dotnetChannels)
     {
         $channelVersion = $dotnetChannel.'channel-version';
-        Invoke-WebRequest -Uri $dotnetChannel.'releases.json' -UseBasicParsing -OutFile "releases-$channelVersion.json"
-        $currentReleases = Get-Content -Path "releases-$channelVersion.json" | ConvertFrom-Json
+        $releasesJsonPath = Start-DownloadWithRetry -Url $dotnetChannel.'releases.json' -Name "releases-$channelVersion.json"
+        $currentReleases = Get-Content -Path $releasesJsonPath | ConvertFrom-Json
         # filtering out the preview/rc releases
         $currentReleases = $currentReleases.'releases' | Where-Object { !$_.'release-version'.Contains('-') } | Sort-Object { [Version] $_.'release-version' }
 
@@ -74,7 +81,6 @@ function InstallAllValidSdks()
             {
                 Write-Host 'Found sdks property in release: ' + $release.'release-version' + 'with sdks count: ' + $release.'sdks'.Count
 
-
                 # Remove duplicate entries & preview/rc version from download list
                 # Sort the sdks on version
                 $sdks = @($release.'sdk');
diff --git a/images/win/scripts/Installers/Windows2016/Install-VS2017.ps1 b/images/win/scripts/Installers/Windows2016/Install-VS2017.ps1
index 9edcb14f..45fae7cd 100644
--- a/images/win/scripts/Installers/Windows2016/Install-VS2017.ps1
+++ b/images/win/scripts/Installers/Windows2016/Install-VS2017.ps1
@@ -3,63 +3,11 @@
 ##  Desc:  Install Visual Studio 2017
 ################################################################################
 
-Function InstallVS
-{
-  Param
-  (
-    [String]$WorkLoads,
-    [String]$Sku,
-    [String] $VSBootstrapperURL
-  )
+$ErrorActionPreference = "Stop"
 
-  $exitCode = -1
+Import-Module -Name ImageHelpers -Force
 
-  try
-  {
-    Write-Host "Enable short name support on Windows needed for Xamarin Android AOT, defaults appear to have been changed in Azure VMs"
-    $shortNameEnableProcess = Start-Process -FilePath fsutil.exe -ArgumentList ('8dot3name', 'set', '0') -Wait -PassThru
-    $shortNameEnableExitCode = $shortNameEnableProcess.ExitCode
-
-    if ($shortNameEnableExitCode -ne 0)
-    {
-      Write-Host -Object 'Enabling short name support on Windows failed. This needs to be enabled prior to VS 2017 install for Xamarin Andriod AOT to work.'
-      exit $shortNameEnableExitCode
-    }
-
-    Write-Host "Downloading Bootstrapper ..."
-    Invoke-WebRequest -Uri $VSBootstrapperURL -OutFile "${env:Temp}\vs_$Sku.exe"
-
-    $FilePath = "${env:Temp}\vs_$Sku.exe"
-    $Arguments = ('/c', $FilePath, $WorkLoads, '--quiet', '--norestart', '--wait', '--nocache' )
-
-    Write-Host "Starting Install ..."
-    $process = Start-Process -FilePath cmd.exe -ArgumentList $Arguments -Wait -PassThru
-    $exitCode = $process.ExitCode
-
-    if ($exitCode -eq 0 -or $exitCode -eq 3010)
-    {
-      Write-Host -Object 'Installation successful'
-      return $exitCode
-    }
-    else
-    {
-      Write-Host -Object "Non zero exit code returned by the installation process : $exitCode."
-
-      # this wont work because of log size limitation in extension manager
-      # Get-Content $customLogFilePath | Write-Host
-
-      exit $exitCode
-    }
-  }
-  catch
-  {
-    Write-Host -Object "Failed to install Visual Studio. Check the logs for details in $customLogFilePath"
-    Write-Host -Object $_.Exception.Message
-    exit -1
-  }
-}
-
-$WorkLoads = '--allWorkloads --includeRecommended ' + `
+$WorkLoads =    '--allWorkloads --includeRecommended ' + `
                 '--add Microsoft.Net.Component.4.6.2.SDK ' + `
                 '--add Microsoft.Net.Component.4.6.2.TargetingPack ' + `
                 '--add Microsoft.Net.ComponentGroup.4.6.2.DeveloperTools ' + `
@@ -129,20 +77,18 @@ $WorkLoads = '--allWorkloads --includeRecommended ' + `
                 '--add Microsoft.VisualStudio.Workload.Office ' + `
                 '--add Microsoft.VisualStudio.Workload.OfficeBuildTools '
 
-$Sku = 'Enterprise'
-$VSBootstrapperURL = 'https://aka.ms/vs/15/release/vs_enterprise.exe'
-
-$ErrorActionPreference = 'Stop'
+$ReleaseInPath = "Enterprise"
+$BootstrapperUrl = "https://aka.ms/vs/15/release/vs_${ReleaseInPath}.exe"
 
 # Install VS
-$exitCode = InstallVS -WorkLoads $WorkLoads -Sku $Sku -VSBootstrapperURL $VSBootstrapperURL
+Install-VisualStudio -BootstrapperUrl $BootstrapperUrl -WorkLoads $WorkLoads
 
 # Find the version of VS installed for this instance
 # Only supports a single instance
 $vsProgramData = Get-Item -Path "C:\ProgramData\Microsoft\VisualStudio\Packages\_Instances"
 $instanceFolders = Get-ChildItem -Path $vsProgramData.FullName
 
-if($instanceFolders -is [array])
+if ($instanceFolders -is [array])
 {
     Write-Host "More than one instance installed"
     exit 1
@@ -151,20 +97,19 @@ if($instanceFolders -is [array])
 $catalogContent = Get-Content -Path ($instanceFolders.FullName + '\catalog.json')
 $catalog = $catalogContent | ConvertFrom-Json
 $version = $catalog.info.id
-$VSInstallRoot = "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise"
-Write-Host "Visual Studio version" $version "installed"
+$VSInstallRoot = "C:\Program Files (x86)\Microsoft Visual Studio\2017\$ReleaseInPath"
+Write-Host "Visual Studio version ${version} installed"
 
 # Initialize Visual Studio Experimental Instance for integration testing
-&"$VSInstallRoot\Common7\IDE\devenv.exe" /RootSuffix Exp /ResetSettings General.vssettings /Command File.Exit | Wait-Process
+& "$VSInstallRoot\Common7\IDE\devenv.exe" /RootSuffix Exp /ResetSettings General.vssettings /Command File.Exit | Wait-Process
 
 # Updating content of MachineState.json file to disable autoupdate of VSIX extensions
 $newContent = '{"Extensions":[{"Key":"1e906ff5-9da8-4091-a299-5c253c55fdc9","Value":{"ShouldAutoUpdate":false}},{"Key":"Microsoft.VisualStudio.Web.AzureFunctions","Value":{"ShouldAutoUpdate":false}}],"ShouldAutoUpdate":false,"ShouldCheckForUpdates":false}'
 Set-Content -Path "$VSInstallRoot\Common7\IDE\Extensions\MachineState.json" -Value $newContent
 
-
 # Adding description of the software to Markdown
 
-$SoftwareName = "Visual Studio 2017 Enterprise"
+$SoftwareName = "Visual Studio 2017 $ReleaseInPath"
 
 $Description = @"
 _Version:_ $version<br/>
@@ -198,8 +143,4 @@ In addition the following optional components are installed:
 Add-SoftwareDetailsToMarkdown -SoftwareName $SoftwareName -DescriptionMarkdown $Description
 
 # Adding explicitly added Workloads details to markdown by parsing $Workloads
-Add-ContentToMarkdown -Content $($WorkLoads.Split('--') | % { if( ($_.Split(" "))[0] -like "add") { "* " +($_.Split(" "))[1] }  } )
-
-
-
-exit $exitCode
+Add-ContentToMarkdown -Content $($WorkLoads.Split('--') | % { if( ($_.Split(" "))[0] -like "add") { "* " +($_.Split(" "))[1] }  } )
\ No newline at end of file
diff --git a/images/win/scripts/Installers/Windows2019/Install-VS2019.ps1 b/images/win/scripts/Installers/Windows2019/Install-VS2019.ps1
index 1ccd5c42..627ff18d 100644
--- a/images/win/scripts/Installers/Windows2019/Install-VS2019.ps1
+++ b/images/win/scripts/Installers/Windows2019/Install-VS2019.ps1
@@ -4,61 +4,7 @@
 ################################################################################
 $ErrorActionPreference = "Stop"
 
-Function InstallVS
-{
-  Param
-  (
-    [String]$WorkLoads,
-    [String]$Sku,
-    [String] $VSBootstrapperURL
-  )
-
-  $exitCode = -1
-
-  try
-  {
-    Write-Host "Enable short name support on Windows needed for Xamarin Android AOT, defaults appear to have been changed in Azure VMs"
-    $shortNameEnableProcess = Start-Process -FilePath fsutil.exe -ArgumentList ('8dot3name', 'set', '0') -Wait -PassThru
-    $shortNameEnableExitCode = $shortNameEnableProcess.ExitCode
-
-    if ($shortNameEnableExitCode -ne 0)
-    {
-      Write-Host -Object 'Enabling short name support on Windows failed. This needs to be enabled prior to VS 2017 install for Xamarin Andriod AOT to work.'
-      exit $shortNameEnableExitCode
-    }
-
-    Write-Host "Downloading Bootstrapper ..."
-    Invoke-WebRequest -Uri $VSBootstrapperURL -OutFile "${env:Temp}\vs_$Sku.exe"
-
-    $FilePath = "${env:Temp}\vs_$Sku.exe"
-    $Arguments = ('/c', $FilePath, $WorkLoads, '--quiet', '--norestart', '--wait', '--nocache' )
-
-    Write-Host "Starting Install ..."
-    $process = Start-Process -FilePath cmd.exe -ArgumentList $Arguments -Wait -PassThru
-    $exitCode = $process.ExitCode
-
-    if ($exitCode -eq 0 -or $exitCode -eq 3010)
-    {
-      Write-Host -Object 'Installation successful'
-      return $exitCode
-    }
-    else
-    {
-      Write-Host -Object "Non zero exit code returned by the installation process : $exitCode."
-
-      # this wont work because of log size limitation in extension manager
-      # Get-Content $customLogFilePath | Write-Host
-
-      exit $exitCode
-    }
-  }
-  catch
-  {
-    Write-Host -Object "Failed to install Visual Studio. Check the logs for details in $customLogFilePath"
-    Write-Host -Object $_.Exception.Message
-    exit -1
-  }
-}
+Import-Module -Name ImageHelpers -Force
 
 $WorkLoads = '--allWorkloads --includeRecommended ' + `
               '--add Component.Dotfuscator ' + `
@@ -150,22 +96,18 @@ $WorkLoads = '--allWorkloads --includeRecommended ' + `
               '--add Microsoft.VisualStudio.Workload.Universal ' + `
               '--add Microsoft.VisualStudio.Workload.VisualStudioExtension'
 
-
-$ReleaseInPath = 'Enterprise'
-$Sku = 'Enterprise'
-$VSBootstrapperURL = 'https://aka.ms/vs/16/release/vs_Enterprise.exe'
-
-$ErrorActionPreference = 'Stop'
+$ReleaseInPath = "Enterprise"
+$BootstrapperUrl = "https://aka.ms/vs/16/release/vs_${ReleaseInPath}.exe"
 
 # Install VS
-$exitCode = InstallVS -WorkLoads $WorkLoads -Sku $Sku -VSBootstrapperURL $VSBootstrapperURL
+Install-VisualStudio -BootstrapperUrl $BootstrapperUrl -WorkLoads $WorkLoads
 
 # Find the version of VS installed for this instance
 # Only supports a single instance
 $vsProgramData = Get-Item -Path "C:\ProgramData\Microsoft\VisualStudio\Packages\_Instances"
 $instanceFolders = Get-ChildItem -Path $vsProgramData.FullName
 
-if($instanceFolders -is [array])
+if ($instanceFolders -is [array])
 {
     Write-Host "More than one instance installed"
     exit 1
@@ -174,14 +116,15 @@ if($instanceFolders -is [array])
 $catalogContent = Get-Content -Path ($instanceFolders.FullName + '\catalog.json')
 $catalog = $catalogContent | ConvertFrom-Json
 $version = $catalog.info.id
-Write-Host "Visual Studio version" $version "installed"
+$VSInstallRoot = "C:\Program Files (x86)\Microsoft Visual Studio\2019\$ReleaseInPath"
+Write-Host "Visual Studio version ${version} installed"
 
 # Initialize Visual Studio Experimental Instance
-&"C:\Program Files (x86)\Microsoft Visual Studio\2019\$ReleaseInPath\Common7\IDE\devenv.exe" /RootSuffix Exp /ResetSettings General.vssettings /Command File.Exit
+& "$VSInstallRoot\Common7\IDE\devenv.exe" /RootSuffix Exp /ResetSettings General.vssettings /Command File.Exit
 
 # Updating content of MachineState.json file to disable autoupdate of VSIX extensions
 $newContent = '{"Extensions":[{"Key":"1e906ff5-9da8-4091-a299-5c253c55fdc9","Value":{"ShouldAutoUpdate":false}},{"Key":"Microsoft.VisualStudio.Web.AzureFunctions","Value":{"ShouldAutoUpdate":false}}],"ShouldAutoUpdate":false,"ShouldCheckForUpdates":false}'
-Set-Content -Path "C:\Program Files (x86)\Microsoft Visual Studio\2019\$ReleaseInPath\Common7\IDE\Extensions\MachineState.json" -Value $newContent
+Set-Content -Path "$VSInstallRoot\Common7\IDE\Extensions\MachineState.json" -Value $newContent
 
 
 # Adding description of the software to Markdown
@@ -190,7 +133,7 @@ $SoftwareName = "Visual Studio 2019 Enterprise"
 
 $Description = @"
 _Version:_ $version<br/>
-_Location:_ C:\Program Files (x86)\Microsoft Visual Studio\2019\$ReleaseInPath
+_Location:_ $VSInstallRoot
 
 The following workloads and components are installed with Visual Studio 2019:
 "@
@@ -198,7 +141,4 @@ The following workloads and components are installed with Visual Studio 2019:
 Add-SoftwareDetailsToMarkdown -SoftwareName $SoftwareName -DescriptionMarkdown $Description
 
 # Adding explicitly added Workloads details to markdown by parsing $Workloads
-Add-ContentToMarkdown -Content $($WorkLoads.Split('--') | % { if( ($_.Split(" "))[0] -like "add") { "* " +($_.Split(" "))[1] }  } )
-
-
-exit $exitCode
+Add-ContentToMarkdown -Content $($WorkLoads.Split('--') | % { if( ($_.Split(" "))[0] -like "add") { "* " +($_.Split(" "))[1] }  } )
\ No newline at end of file