REM Makes a temporary folder.
mkdir %LocalAppData%Tempsteam_cache

REM Deleted all none essential files in Steam's configuration folder.
move "%ProgramFiles(x86)%Steamconfigconfig.vdf" %LocalAppData%Tempsteam_cache
move "%ProgramFiles(x86)%Steamconfigloginusers.vdf" %LocalAppData%Tempsteam_cache
rmdir "%ProgramFiles(x86)%Steamconfig" /s /q
mkdir "%ProgramFiles(x86)%Steamconfig"
move %LocalAppData%Tempsteam_cacheconfig.vdf "%ProgramFiles(x86)%Steamconfig"
move %LocalAppData%Tempsteam_cacheloginusers.vdf "%ProgramFiles(x86)%Steamconfig"

REM Delete all none essential files in Steam's userdata folder.

%ProgramFiles(x86)%Steamuserdata256283931

%ProgramFiles(x86)%Steamuserdata256283931ugcmsgcache