4 - Table of contentsSecuring your computer 62Using passwords ............................................. 62Entering passwords .................................. 63Acer Theft Shield 64Using Acer Theft Shield ................................... 66General ..................................................... 66Settings..................................................... 67MagicFlip port door 68Connectivity options ........................................ 68Opening or closing the door ............................ 68MagicFlip port door notification................ 69Wireless networks 70Connecting to the Internet ............................... 70Acer Always Connect ............................... 70Acer Instant Update.................................. 70Wireless networks ............................................ 71Using a Bluetooth connection 73Enabling and disabling Bluetooth ................... 73Adding a bluetooth device .............................. 75Thunderbolt 80HDMI 81Universal Serial Bus (USB) 82BIOS utility 83Boot sequence ................................................ 83Enable disk-to-disk recovery .......................... 83Setting passwords........................................... 83Frequently asked questions 84Requesting service.......................................... 87Troubleshooting .............................................. 89Troubleshooting tips ................................ 89Error messages ........................................ 89Regulations and safety notices 91