$Code = @'
@echo off & cd/d "%~dp0"
set "Folder=%~1"

Powershell -executionpolicy remotesigned ^
	$TMP = @{};^
	ls '%Folder%' -filter * -exclude "$PSCommandPath" -rec ^|^
	Where {$_.Directory} ^| Sort -desc ^|^
	Foreach {^
		$hash = ( get-filehash $_.fullname -algorithm sha256 ).hash;^
		if ( $TMP.ContainsKey( $hash ) ) {^
			del $_.fullname -verb;^
		} else { $TMP.Add( $hash,$_ ) };^
	};
CMD /c pause;
'@

$Execution = @'
Copy "$env:temp\清理文件夹内重复文件.CMD" -dest "$env:windir" -force;
$reg = "Registry::HKCR\Folder\shell";
New-Item "$reg\DelRepeatFile" -force -verb;
New-ItemProperty "$reg\DelRepeatFile" -Name 'Extended' -force -verb;
New-ItemProperty "$reg\DelRepeatFile" -Name 'MUIVerb' -Value '删除重复的多余文件' -Force -verb;
New-ItemProperty "$reg\DelRepeatFile" -Name 'Position' -Value 'Bottom' -Force -verb;
New-ItemProperty "$reg\DelRepeatFile" -Name 'Icon' -Value 'SHELL32.dll,171' -Force -verb;

New-Item "$reg\DelRepeatFile\command" -force -verb;
Set-ItemProperty "$reg\DelRepeatFile\command" -Name '(default)' -type 'ExpandString' -Value "`"%Windir%\清理文件夹内重复文件.cmd`" `"%1`"" -force -verb;

$file = Get-Item "$env:Windir\清理文件夹内重复文件.CMD";
$file.Attributes = 'ReadOnly','System','Hidden','Archive';
CMD /c pause;
'@

Set-content "$env:temp\清理文件夹内重复文件.CMD" -Value $Code -enc Default -force;
Set-content "$env:temp\Reg.ps1" -Value $Execution -enc Default -force;

Start-Process Powershell.exe "-NoProfile -Execution RemoteSigned -File `"$env:temp\Reg.ps1`"" -verb runas;
CMD /c pause;
Remove-Item "$env:temp\清理文件夹内重复文件.CMD" -Force;
Remove-Item "$env:temp\Reg.ps1" -Force;
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