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");

我还没见过自己的方法，所以，试试这个。它更容易遵循，占用的空间也更小:

if([bool]([Security.Principal.WindowsIdentity]::GetCurrent()).Groups -notcontains "S-1-5-32-544") {
    Start Powershell -ArgumentList "& '$MyInvocation.MyCommand.Path'" -Verb runas
    }

很简单，如果使用管理员权限调用当前Powershell会话，那么在获取当前标识时，管理员组已知SID将显示在组中。即使帐户是该组的成员，SID也不会显示，除非使用提升的凭据调用流程。

几乎所有这些答案都是微软本·阿姆斯特朗(Ben Armstrong)非常流行的方法的变体，即如何在不真正掌握实际操作的情况下完成它，以及如何模仿相同的程序。

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
}

另一个更简单的解决方案是，你也可以右键单击“C:\Windows\System32\cmd.exe”，并选择“以管理员身份运行”，然后你就可以以管理员身份运行任何应用程序，而无需提供任何密码。

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。

下面是如何运行一个提升的powershell命令，并在单个命令(i)中收集windows批处理文件中的输出形式。E不写ps1 powershell脚本)。

powershell -Command 'Start-Process powershell -ArgumentList "-Command (Get-Process postgres | Select-Object Path | Select-Object -Index 0).Path | Out-File -encoding ASCII $env:TEMP\camp-postgres.tmp" -Verb RunAs'

上面你看到我首先启动一个powershell与提升提示，然后要求启动另一个powershell(子shell)运行命令。