Contents 7Connecting to a WLAN . . . . . . . . . . . . . . . 79Enabling/Disabling the Wireless Network Card . . 81Mobile Broadband/Wireless Wide Area Network (WWAN) 82What You Need to Establish a Mobile Broadband NetworkConnection . . . . . . . . . . . . . . . . . . . . . 82Checking Your Dell Mobile Broadband Card . . . . 83Microsoft ® Windows ® Firewall . . . . . . . . . . . . 8310 Securing Your Computer . . . . . . . . . . . . . 85Security Cable Lock . . . . . . . . . . . . . . . . . . . 85Passwords . . . . . . . . . . . . . . . . . . . . . . . . 85Computer Tracking Software . . . . . . . . . . . . . . 86If Your Computer Is Lost or Stolen . . . . . . . . . . . . 8611 Adding and Replacing Parts . . . . . . . . . . 89Before You Begin . . . . . . . . . . . . . . . . . . . . 89Recommended Tools . . . . . . . . . . . . . . . . 89Turning Off Your Computer . . . . . . . . . . . . . 89Before Working Inside Your Computer . . . . . . . 90Optical Drive . . . . . . . . . . . . . . . . . . . . . . . 92Hard Drive . . . . . . . . . . . . . . . . . . . . . . . . 92Returning a Hard Drive to Dell . . . . . . . . . . . 94Memory . . . . . . . . . . . . . . . . . . . . . . . . . 95Modem . . . . . . . . . . . . . . . . . . . . . . . . . . 98Hinge Cover . . . . . . . . . . . . . . . . . . . . . . . 100
