🕵️ Self privileges escalation with PowerShell.

RunAsAdmin.ps1

#Requires -RunAsAdministrator

#OneLine
if (!([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) { Start-Process powershell.exe "-NoProfile -ExecutionPolicy Bypass -File `"$PSCommandPath`"" -Verb RunAs; exit }

#Or example :

# Store the current location
$Loc = Get-Location

# Execute in the Windows Principal context
$adminCheck = "Security.Principal.Windows" | ForEach-Object {
    IEX "( [ $_`Principal ] [$_`Identity ]::GetCurrent() ).IsInRole( 'Administrator' )"
}

if ($adminCheck) {
    $arguments = @('-NoProfile', '-ExecutionPolicy Bypass', '-NoExit', '-File', "`"$($MyInvocation.MyCommand.Path)`"", "`"$Loc`"")
    Start-Process -FilePath PowerShell.exe -Verb RunAs -ArgumentList $arguments
}

# Your script here

"Security.Principal.Windows" | % { IEX "( [ $_`Principal ] [$_`Identity ]::GetCurrent() ).IsInRole( 'Administrator' )" } | ? {
    $True | % { SAPS PowerShell "-NoProfile -ExectionPolicy Bypass -File `"$PSCommandPath"` -Verb RunAs ; Exit } }

Holy mother of incomprehensible spaghetti one-liners

Why not even better, don't forget your current directory:

$Loc = Get-Location
"Security.Principal.Windows" | % { IEX "( [ $_`Principal ] [$_`Identity ]::GetCurrent() ).IsInRole( 'Administrator' )" } | ? {
    $True | % { $Arguments =  @('-NoProfile','-ExecutionPolicy Bypass','-NoExit','-File',"`"$($MyInvocation.MyCommand.Path)`"","\`"$Loc\`"");
    Start-Process -FilePath PowerShell.exe -Verb RunAs -ArgumentList $Arguments; } }

(Get-Location).ToString()
## Any PS code that needs elevation
Read-Host

@github-account1111 it's more easy when you add just one line on the top of your script.

@vivekwebm2020 thanks

@atao not sure what you're saying.
It's "more easy" in what regard?
Certainly not readability or maintenance or debugging or literally anything else.
Should be 79 chars wide or less.

@vivekwebm2020 I just updated the gist !