powershell 加速启动

PowerShell steps to fix slow startup

用 管理员权限 运行以下命令：

$env:PATH = [Runtime.InteropServices.RuntimeEnvironment]::GetRuntimeDirectory()
[AppDomain]::CurrentDomain.GetAssemblies() | ForEach-Object {
    $path = $_.Location
    if ($path) {
        $name = Split-Path $path -Leaf
        Write-Host -ForegroundColor Yellow "`r`nRunning ngen.exe on '$name'"
        ngen.exe install $path /nologo
    }
}