Cleanup more useless files:
DEL /Q/F "%UserProfile%\Local Settings\Application Data\Microsoft\Internet Explorer\brndlog.*"
DEL /Q/F "%SystemRoot%\system32\config\systemprofile\Local Settings\Application Data\Microsoft\Internet Explorer\brndlog.*"
DEL /Q/F "%SystemDrive%\Documents and Settings\Default User\Local Settings\Application Data\Microsoft\Internet Explorer\brndlog.*"
DEL /Q/F "%AllUsersProfile%\Application Data\Symantec\Common Client\*.bak"
DEL /Q/F "%SystemRoot%\pchealth\helpctr\Config\Cache\*.bak"
DEL /Q/F "%SystemRoot%\inf\*.pnf"
DEL /Q/F "%SystemRoot%\security\edb00*.log"
DEL /Q/F "%SystemRoot%\system32\config.tmp"
DEL /Q/F "%SystemRoot%\system32\CatRoot2\edb00*.log"
DEL /Q/F "%SystemRoot%\system32\CatRoot2\dberr.txt"
DEL /Q/F "%SystemRoot%\system32\dllcache\*"
DEL /Q/F "%SystemRoot%\system32\*.log"
DEL /Q/F "%SystemRoot%\system32\wbem\Logs\*.log"
DEL /Q/F "%SystemRoot%\pchealth\helpctr\Logs\*.log"
DEL /Q/F "%SystemRoot%\Microsoft.NET\Framework\v2.0.50727\*.log"
DEL /Q/F "%ProgramFiles%\Symantec\LiveUpdate\*.log"
FOR %%N IN (%SystemDrive%\AUTOEXEC.BAT %SystemDrive%\CONFIG.SYS) DO IF %%~zN==0 DEL /Q/F %%N
FOR %%N IN (%SystemDrive%\IO.SYS %SystemDrive%\MSDOS.SYS) DO IF %%~zN==0 DEL /Q/F/AS %%N
Useless startup programs:
SET KEY=HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
REG DELETE %KEY% /V "Adobe Reader Speed Launcher" /f
REG DELETE %KEY% /V "FinePrint Dispatcher v5" /f
REG DELETE %KEY% /V "pdfFactory Pro Dispatcher v2" /f
REG DELETE %KEY% /V "pdfFactory Pro Dispatcher v3" /f
REG DELETE %KEY% /V "DAEMON Tools-1033" /f
REG DELETE %KEY% /V "IgfxTray" /f
REG DELETE %KEY% /V "HotKeysCmds" /f
REG DELETE %KEY% /V "NvMediaCenter" /f
REG DELETE %KEY% /V "nwiz" /f
REG DELETE %KEY% /V "RTHDCPL" /f
REG DELETE %KEY% /V "ATIPTA" /f
REG DELETE %KEY% /V "P17Helper" /f
REG DELETE %KEY% /V "SoundMan"