Have a laptop without knowing the useful applications that are very harmful. These are applications for your laptop that you must have:

SDExplorer

The data on your laptop can be backed up online now. The application will be backing up your laptop data to the site file backup Windows Live SkyDrive, where you can register for free and get backup capacity of 25GB for free. If the laptop is gone, you just download the data from your account in Windows Live SkyDrive from any computer.

WeFi

Laptops today would have been equipped with WiFi. But to make matters connect with WeFi hotspot becomes much easier. This application will search for and directly connect your laptop to a free hotspot that is around you. This application has a community that will share the free hotspot locations around the world. He cried again, have a look through applications like Yahoo! Messenger you can chat with friends who are also users of WeFi.
Avanquest (Connection Manager)