HP Pavilion 15-n000 User Guide - Page 8

Removing an optical disc 53 Tray-load ...53 When the disc tray opens normally 53 When the disc tray fails to open normally 54 Sharing data and drives and accessing software 55 8 Maintaining your computer ...57 Improving performance ...57 Using HP 3D DriveGuard (select models only 57 Using Disk Defragmenter 57 Using Disk Cleanup ...58 Adding or replacing memory modules 58 Updating programs and drivers ...60 Cleaning your computer ...60 Cleaning procedures ...61 Cleaning the display (All-in-Ones or Notebooks 61 Cleaning the sides or cover 61 Cleaning the TouchPad, keyboard, or mouse 61 Traveling with or shipping your computer 62 9 Securing your computer and information 63 Using passwords ...63 Setting Windows passwords 64 Setting Setup Utility (BIOS) passwords 64 Using Internet security software ...64 Using antivirus software ...65 Using firewall software ...65 Installing software updates ...65 Installing critical security updates 65 Installing HP and third-party software updates 65 Securing your wireless network ...66 Backing up your software applications and information 66 Using an optional security cable lock 66 10 Using Setup Utility (BIOS) and HP PC Hardware Diagnostics (UEFI 67 Starting Setup Utility (BIOS) ...67 Updating the BIOS ...67 Determining the BIOS version 67 Downloading a BIOS update 68 Using HP PC Hardware Diagnostics (UEFI 68 viii