Ernest G. Wilson II's "Windows Tricks"

bulletCommand Line Defrag (batch file can do multiple drives)
defrag c: -f -v
 
bulletClear Internet Files via command line
Temporary Internet Files
        RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 8
Cookies
        RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 2
History
        RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 1
Form Data
        RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 16
Passwords
        RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 32
Delete All
        RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 255
Delete All - "Also delete files and settings stored by add-ons"
        RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 4351

 
bulletLock your workstation from command line
rundll32.exe user32.dll, LockWorkStation
 
bullet