backup save files to a .wim archive (duplicate files won't take any additional space)

Backup Savefiles.bat

@echo off

REM SET UP CURRENT DATE TIME AND CREATE FOLDER

for /f "skip=1" %%i in ('wmic os get localdatetime') do if not defined fulldate set fulldate=%%i
set year=%fulldate:~0,4%
set month=%fulldate:~4,2%
set day=%fulldate:~6,2%

set CUR_HH=%time:~0,2%
if %CUR_HH% lss 10 (set CUR_HH=0%time:~1,1%)

set CUR_NN=%time:~3,2%
set CUR_SS=%time:~6,2%
set CUR_MS=%time:~9,2%

set foldername="%temp%\%year%-%month%-%day%-%CUR_HH%%CUR_NN%%CUR_SS%"

md %foldername%

REM COPY SAVE FILES

robocopy /mir "C:\Users\djs\Documents\GTA San Andreas User Files" "%foldername%\GTA San Andreas User Files"
robocopy /mir "C:\Users\djs\Documents\GTA Vice City User Files" "%foldername%\GTA Vice City User Files"
robocopy /mir "C:\Users\djs\Documents\GTA3 User Files" "%foldername%\GTA3 User Files"
robocopy /mir "C:\Users\djs\Documents\Rockstar Games" "%foldername%\Rockstar Games"

robocopy /mir "C:\Users\djs\Documents\My Games" "%foldername%\My Games"

robocopy /mir "C:\Users\djs\Documents\The Witcher 3" "%foldername%\The Witcher 3"

robocopy /mir "C:\Users\djs\Documents\Electronic Arts" "%foldername%\Electronic Arts"

robocopy /mir "C:\Users\djs\Documents\Warcraft III" "%foldername%\Warcraft III"

REM COMPRESS

7z a -mx9 "Backup.wim" "%foldername%"

rmdir /s /q "%foldername%"

pause