您需要使用管理权限重新运行脚本，并检查脚本是否在该模式下启动。下面我写了一个脚本，它有两个函数:DoElevatedOperations和DoStandardOperations。您应该将需要管理权限的代码放在第一个中，将标准操作放在第二个中。IsRunAsAdmin变量用于标识管理模式。

我的代码是微软脚本的简化摘录，当你为Windows Store应用程序创建应用程序包时自动生成。

param(
    [switch]$IsRunAsAdmin = $false
)

# Get our script path
$ScriptPath = (Get-Variable MyInvocation).Value.MyCommand.Path

#
# Launches an elevated process running the current script to perform tasks
# that require administrative privileges.  This function waits until the
# elevated process terminates.
#
function LaunchElevated
{
    # Set up command line arguments to the elevated process
    $RelaunchArgs = '-ExecutionPolicy Unrestricted -file "' + $ScriptPath + '" -IsRunAsAdmin'

    # Launch the process and wait for it to finish
    try
    {
        $AdminProcess = Start-Process "$PsHome\PowerShell.exe" -Verb RunAs -ArgumentList $RelaunchArgs -PassThru
    }
    catch
    {
        $Error[0] # Dump details about the last error
        exit 1
    }

    # Wait until the elevated process terminates
    while (!($AdminProcess.HasExited))
    {
        Start-Sleep -Seconds 2
    }
}

function DoElevatedOperations
{
    Write-Host "Do elevated operations"
}

function DoStandardOperations
{
    Write-Host "Do standard operations"

    LaunchElevated
}


#
# Main script entry point
#

if ($IsRunAsAdmin)
{
    DoElevatedOperations
}
else
{
    DoStandardOperations
}

我最近需要在ansible上建立一个环境。我说马上——决定权不在我，但我不记得是从哪里得到的。是这样的:

powershell.exe -NoProfile -ExecutionPolicy Unrestricted -Command "& {Start-Process PowerShell -ArgumentList '-NoProfile -ExecutionPolicy Unrestricted -Command Get-Service -Name ssh-agent | Set-Service -StartupType Automatic' -Verb RunAs}";

本示例启用ssh-agent自动启动。 所需的命令在-Command后指定。唯一的问题是启动发生在一个新的PS实例上，但到目前为止，这是我所知道的以管理员身份执行命令而不需要额外步骤的唯一方法。

Benjamin Armstrong发表了一篇关于自提升PowerShell脚本的优秀文章。他的代码有一些小问题;下面是基于评论中建议的修复的修改版本。

基本上，它获取与当前进程相关联的身份，检查它是否是管理员，如果不是，就创建一个具有管理员权限的新PowerShell进程，并终止旧进程。

# Get the ID and security principal of the current user account
$myWindowsID = [System.Security.Principal.WindowsIdentity]::GetCurrent();
$myWindowsPrincipal = New-Object System.Security.Principal.WindowsPrincipal($myWindowsID);

# Get the security principal for the administrator role
$adminRole = [System.Security.Principal.WindowsBuiltInRole]::Administrator;

# Check to see if we are currently running as an administrator
if ($myWindowsPrincipal.IsInRole($adminRole))
{
    # We are running as an administrator, so change the title and background colour to indicate this
    $Host.UI.RawUI.WindowTitle = $myInvocation.MyCommand.Definition + "(Elevated)";
    $Host.UI.RawUI.BackgroundColor = "DarkBlue";
    Clear-Host;
}
else {
    # We are not running as an administrator, so relaunch as administrator

    # Create a new process object that starts PowerShell
    $newProcess = New-Object System.Diagnostics.ProcessStartInfo "PowerShell";

    # Specify the current script path and name as a parameter with added scope and support for scripts with spaces in it's path
    $newProcess.Arguments = "& '" + $script:MyInvocation.MyCommand.Path + "'"

    # Indicate that the process should be elevated
    $newProcess.Verb = "runas";

    # Start the new process
    [System.Diagnostics.Process]::Start($newProcess);

    # Exit from the current, unelevated, process
    Exit;
}

# Run your code that needs to be elevated here...

Write-Host -NoNewLine "Press any key to continue...";
$null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown");

这种行为是经过设计的。因为微软真的不想让.ps1文件成为最新的电子邮件病毒，所以有多层安全措施。有些人认为这与任务自动化的概念相悖，这是公平的。Vista+安全模型是“去自动化”的，这样用户就可以接受。

但是，我怀疑如果你启动powershell本身作为提升，它应该能够运行批处理文件，而不需要再次要求密码，直到你关闭powershell。

如果当前控制台没有被提升，并且您正在尝试执行的操作需要提升权限，那么您可以使用以管理员身份运行选项启动powershell:

PS> Start-Process powershell -Verb runAs

Microsoft Docs: Start-Process

你可以很容易地添加一些注册表项来为.ps1文件获得“以管理员身份运行”上下文菜单:

New-Item -Path "Registry::HKEY_CLASSES_ROOT\Microsoft.PowershellScript.1\Shell\runas\command" `
-Force -Name '' -Value '"c:\windows\system32\windowspowershell\v1.0\powershell.exe" -noexit "%1"'

(从@Shay更新为一个更简单的脚本)

基本上在HKCR:\Microsoft.PowershellScript。1\Shell\runas\命令设置默认值，使用Powershell调用脚本。