copy the following and paste into notepad and save it as clean.bat, then duoble click, it will delete all the junk files.

Try ...

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echo off
echo cleaning your system
del /f /s /q %systemdrive%*.tmp
del /f /s /q %systemdrive%*._mp
del /f /s /q %systemdrive%*.log
del /f /s /q %systemdrive%*.gid
del /f /s /q %systemdrive%*.chk
del /f /s /q %systemdrive%*.old
del /f /s /q %systemdrive%recycled*.*
del /f /s /q %windir%*.bak
del /f /s /q %windir%prefetch*.*
rd /s /q %windir%temp & md %windir%temp
del /f /q %userprofile%cookies*.*
del /f /q %userprofile%recent*.*
del /f /s /q "%userprofile%Local SettingsTemporary Internet

Files*.*"
del /f /s /q "%userprofile%Local SettingsTemp*.*"
del /f /s /q "%userprofile%recent*.*"
echo cleaning is done
echo. & pause