Hey friends
How many times you said , WTF now i have restart my slow computer . I guess , you say it often after you install a program , or you are unable to install a program because it says you must restart your computer Or some applications crashes on your computer , You don't to restart your computer every time . Just follow these steps -:

1.- Go to your task manager by pressing CTRL+ALT+DEL
2.- Go to processes
3.- Select Explorer.exe and press END PROCESS
4.- Again start your task manager
5.- Choose Run from File Menu
6.- Type Explorer.exe and press Enter
7.- Done :)