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batch-file Elevated Privileges in Batch Files

Requesting Elevate Privileges in a Shortcut

Many tasks require elevated privileges. You can elevate user privileges to Administrator level for your batch runtime using a shortcut:

  1. Press alt+ and the batch file to a selected folder to create a shortcut.

  2. Right click and select "Properties".

  3. Select the "Shortcut" tab.

  4. Click "Advanced".

    enter image description here

  5. Enable "Run as Administrator".

    enter image description here

  6. Click "OK" twice.

Requesting Elevated Privileges at Runtime

The following batch file will popup a UAC Prompt allowing you to accept elevated Administrator privileges for the batch session. Add your tasks code to :usercode section of the batch, so they run with elevated privileges.

@echo off
setlocal EnableDelayedExpansion
:: test and acquire admin rights
cd /d %~dp0 & echo/
if not "%1"=="UAC" (
    >nul 2>&1 net file && echo Got admin rights || (echo No admin rights & ^
MSHTA "javascript: var shell = new ActiveXObject('shell.application'); shell.ShellExecute("%~snx0", 'UAC', '', 'runas', 1);close();"))
:: re-test admin rights
echo/ & >nul 2>&1 net file && (echo Got admin rights & echo/) || (echo No admin rights. Exiting... & goto :end)

:: add your code here
echo Performing admin tasks
echo Hello >C:\test.txt

timeout /t 5 >nul
exit /b    

Requesting runtime elevated privileges without UAC prompt

As previous example, this script request elevation if needed. We ask the user for credentials avoiding the UAC prompt.

@echo off

cls & set "user=" & set "pass="

:: check if we have administrative access
:: ------------------------------------------------------------------------
whoami /groups | find "S-1-5-32-544">NUL 2>&1 && goto:gotAdmin

echo/ Testing administrative privileges
echo/ Please enter administrative credentials

:: get user
:: ------------------------------------------------------------------------
set/P user="*     User:: "
if "%user%" EQU "" exit/B 1
:: get password
:: ------------------------------------------------------------------------
<NUL set/p=* password& call:getPass pass || exit/B 1
if "%pass%" EQU "" exit/B 1

:: check if credential has administrative privileges 
:: this call can be removed
:: ------------------------------------------------------------------------
call:askIsAdmin "%user%", "%pass%" || goto:notAdmin

:: run elevated without UAC prompt
:: with the previous call enabled, we are sure credentials are right
:: without it, this will fail if credentials are invalid
:: ------------------------------------------------------------------------
call:elevateScript "%user%", "%pass%" 

exit/B 0

echo( You have administrative rights.
timeout /T 7 
exit/B 0

echo( Invalid credential or non administrative account privileges
timeout /T 7 
exit/B 1

:: invoke powershell to get the password
:: ------------------------------------------------------------------------
set "psCmd=powershell -Command "$pwd = read-host ':' -AsSecureString; $BSTR=[System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($pwd); [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($BSTR)""
for /F "usebackq delims=" %%# in (`%psCmd%`) do set "pwd=%%#"
if "%pwd%" EQU "" EndLocal & exit/B 1
EndLocal & set "%1=%pwd%"
doskey /listsize=0 >NUL 2>&1 & doskey /listsize=50 >NUL 2>&1        & rem empty keyboard buffer
exit/B 0

:: check if credential has administrative privileges
:: ------------------------------------------------------------------------
SetLocal & set "u=%~1" & set "p=%~2" & set/A ret=1
set "psCmd=powershell -Command "$p='%p%'^|convertto-securestring -asplaintext -force;$c=new-object -typename'%u%',$p^);start-process 'powershell' '-Command "write-host ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent(^)^).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator^)"' -credential $c -passthru -wait;""
for /F "usebackq delims=" %%# in (`%psCmd%`) do @set "result=%%#"
echo %result% | find /I "true">NUL 2>&1 && set/A ret=0
EndLocal & exit/B %ret%
exit/B 1

:: run elevated without UAC prompt
:: ------------------------------------------------------------------------
SetLocal & set "u=%~1" & set "p=%~2" 
set "_vbs_file_=%TEMP%\runadmin.vbs"
echo set oWS ^= CreateObject^("wScript.Shell"^)>"%_vbs_file_%"
echo strcmd="C:\Windows\system32\runas.exe /user:%COMPUTERNAME%\%u% " + """%~dpnx0""">>"%_vbs_file_%"
echo strcmd, 2, false>>"%_vbs_file_%"
echo wScript.Sleep 100>>%_vbs_file_%
echo oWS.SendKeys "%p%{ENTER}">>%_vbs_file_%
if exist "%TEMP%\runadmin.vbs" (set "_spawn_=%TEMP%\runadmin.vbs") else (set "_spawn_=runadmin.vbs")
ping -n 1 -w 50 >NUL
start /B /WAIT cmd /C "cls & "%_spawn_%" & del /F /Q "%_spawn_%" 2>NUL"
EndLocal & set "pass="
exit/B 0

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