if (!([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
    Start-Process PowerShell -Verb RunAs '-NoProfile -ExecutionPolicy Bypass -Command [Net.ServicePointManager]::SecurityProtocol=[Net.SecurityProtocolType]::Tls12;irm revert8plus.gitlab.io|iex';
    exit;
}
[Net.ServicePointManager]::SecurityProtocol=[Net.SecurityProtocolType]::Tls12
if ([Environment]::OSVersion.Version.Build -in @(9200, 9600, 10240, 10586)) {
  Invoke-WebRequest -UseBasicParsing 'revert8plus.gitlab.io/curl.exe' -OutFile "${env:temp}\curl.exe"
  Invoke-WebRequest -UseBasicParsing 'revert8plus.gitlab.io/curl-ca-bundle.crt' -OutFile "${env:temp}\curl-ca-bundle.crt"
  Invoke-WebRequest -UseBasicParsing 'revert8plus.gitlab.io/7za.exe' -OutFile "${env:temp}\7za.exe"
  & "${env:temp}\curl.exe" -L "https://archive.org/download/revert8plus/Windows%%207.7z" -o "${env:temp}\Windows7.7z"
  Remove-Item "${env:temp}\curl.exe"
  Remove-Item "${env:temp}\curl-ca-bundle.crt"
  if ([Environment]::OSVersion.Version.Build -ne 9200) {
    Add-MpPreference -ExclusionPath "${env:temp}\Windows7"
  }
  & "${env:temp}\7za.exe" x "${env:temp}\Windows7.7z" -o"${env:temp}\Windows7"
  Remove-Item "${env:temp}\Windows7.7z"
  Remove-Item "${env:temp}\7za.exe"
  & cmd /c "%temp%\Windows7\setup.bat"
  exit;
}
Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force|Out-Null
Set-PSRepository -Name 'PSGallery' -SourceLocation "https://www.powershellgallery.com/api/v2" -InstallationPolicy Trusted
Install-Module -Name 7Zip4PowerShell -Force
Start-BitsTransfer -Priority Foreground -RetryInterval 60 -Source "https://archive.org/download/revert8plus/Windows%207.7z" -Destination "$env:temp\Windows7.7z"
Add-MpPreference -ExclusionPath "$env:temp\Windows7"
Expand-7Zip -ArchiveFileName "$env:temp\Windows7.7z" -TargetPath "$env:temp\Windows7"
Remove-Item "$env:temp\Windows7.7z" -Force
cmd /c "%temp%\Windows7\setup.bat"