Trick #1: Disable Windows Shutdown and Start up Sound.
Trick #2: Type msconfig in Run and untick unnecessary stuff from start up.
Trick #3: Type msconfig in Run and untick no GUI boot under Boot.
Trick #4: Type regedit in Run Navigate to HKEY_CURRENT_USER > Control Panel > Desktop Under Desktop Find MenuShowDelay and change it's value to 0 also find under Desktop WaittokillAppTimeout and change it to 1000.
Trick #5: And of course use a good antivirus and keep it update i prefer Eset Nod32 4.
I am sure you will find these Tricks Useful