Many scripts require admin permissions, but remembering to right click and select “Run as Administrator” can be a pain. Fortunately, both batch and PowerShell scripts can written so that they’ll prompt for admin permissions if not run as an administrator. This won’t get around not having administrator permissions, but will save you a couple clicks every run by jumping straight to the UAC prompt.

Neither of these scripts are mine, but I’m documenting them here for my own quick and frequent reference.

CMD / Batch scripts:

::::::::::::::::::::::::::::::::::::::::::::
:: Elevate.cmd - Version 4
:: Automatically check & get admin rights
:: see "https://stackoverflow.com/a/12264592/1016343" for description
::::::::::::::::::::::::::::::::::::::::::::
 @echo off
 CLS
 ECHO.
 ECHO =============================
 ECHO Running Admin shell
 ECHO =============================

:init
 setlocal DisableDelayedExpansion
 set cmdInvoke=1
 set winSysFolder=System32
 set "batchPath=%~0"
 for %%k in (%0) do set batchName=%%~nk
 set "vbsGetPrivileges=%temp%\OEgetPriv_%batchName%.vbs"
 setlocal EnableDelayedExpansion

:checkPrivileges
  NET FILE 1>NUL 2>NUL
  if '%errorlevel%' == '0' ( goto gotPrivileges ) else ( goto getPrivileges )

:getPrivileges
  if '%1'=='ELEV' (echo ELEV & shift /1 & goto gotPrivileges)
  ECHO.
  ECHO **************************************
  ECHO Invoking UAC for Privilege Escalation
  ECHO **************************************

  ECHO Set UAC = CreateObject^("Shell.Application"^) > "%vbsGetPrivileges%"
  ECHO args = "ELEV " >> "%vbsGetPrivileges%"
  ECHO For Each strArg in WScript.Arguments >> "%vbsGetPrivileges%"
  ECHO args = args ^& strArg ^& " "  >> "%vbsGetPrivileges%"
  ECHO Next >> "%vbsGetPrivileges%"

  if '%cmdInvoke%'=='1' goto InvokeCmd 

  ECHO UAC.ShellExecute "!batchPath!", args, "", "runas", 1 >> "%vbsGetPrivileges%"
  goto ExecElevation

:InvokeCmd
  ECHO args = "/c """ + "!batchPath!" + """ " + args >> "%vbsGetPrivileges%"
  ECHO UAC.ShellExecute "%SystemRoot%\%winSysFolder%\cmd.exe", args, "", "runas", 1 >> "%vbsGetPrivileges%"

:ExecElevation
 "%SystemRoot%\%winSysFolder%\WScript.exe" "%vbsGetPrivileges%" %*
 exit /B

:gotPrivileges
 setlocal & cd /d %~dp0
 if '%1'=='ELEV' (del "%vbsGetPrivileges%" 1>nul 2>nul  &  shift /1)

 ::::::::::::::::::::::::::::
 ::START
 ::::::::::::::::::::::::::::
 REM Run shell as admin (example) - put here code as you like
 ECHO %batchName% Arguments: P1=%1 P2=%2 P3=%3 P4=%4 P5=%5 P6=%6 P7=%7 P8=%8 P9=%9
 REM put remaining commands here
 cmd /k

source (stackoverflow)

PowerShell:

Fortunately this one’s a lot shorter:

If (-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator"))

{   
	$arguments = "& '" + $myinvocation.mycommand.definition + "'"
	Start-Process powershell -Verb runAs -ArgumentList $arguments
	Break
}

source (stackoverflow)