@echo off

REM We are redirecting the output of the commands and any errors to NUL. 
REM If you would like to see the output, then remove the  2>NUL from the end of the commands.

REM Check if vssadmin.exe exists. If not, abort the script

if NOT exist %WinDir%\system32\vssadmin.exe (
 echo.
 echo.%WinDir%\system32\vssadmin.exe does not exist!
 echo.
 echo Script Aborting!
 echo.
 PAUSE
 goto:eof
)

REM Check if the script was started with Administrator privileges.
REM Method from http://stackoverflow.com/questions/4051883/batch-script-how-to-check-for-admin-rights

net session >nul 2>&1

if %errorLevel% NEQ 0 (
 echo.
 echo You do not have the required Administrator privileges.
 echo.
 echo Please run the script again as an Administrator.
 echo.
 echo Script Aborting!
 echo.
 PAUSE
 goto:eof
)

REM We need to give the Administrators ownership before we can change permissions on the file
takeown /F %WinDir%\system32\vssadmin.exe /A >nul 2>&1

REM Give Administrators the Change permissions for the file
CACLS %WinDir%\system32\vssadmin.exe /E /G "Administrators":C >nul 2>&1

REM Generate the name we are going to use when rename vssadmin.exe
REM This filename will be based off of the date and time.
REM http://blogs.msdn.com/b/myocom/archive/2005/06/03/so-what-the-heck-just-happened-there.aspx

for /f "delims=/ tokens=1-3" %%a in ("%DATE:~4%") do (
    for /f "delims=:. tokens=1-4" %%m in ("%TIME: =0%") do (
        set RenFile=vssadmin.exe-%%c-%%b-%%a-%%m%%n%%o%%p
    )
)

REM Rename vssadmin.exe to the filename in the RenFile variable

ren %WinDir%\system32\vssadmin.exe %RenFile% >nul 2>&1

REM Check if the task was completed successfully 

if exist %WinDir%\system32\%RenFile% (
 echo.
 echo vssadmin.exe has been successfully renamed 
 echo to %WinDir%\system32\%RenFile%.
 pause
) else (
 echo.
 echo There was a problem renaming vssadmin.exe
 echo to %WinDir%\system32\%RenFile%.
 echo.
 pause
)

:END