User manual SONY VAIO VGN-NW105J

[. . . ] · The features described in this guide are common to most models. Some features may not be available on your computer and/or your computer may include features that are not described in this user guide. · The illustrations used in this manual are for Lenovo G555 unless otherwise stated. · The illustrations in this manual may differ from the actual product. [. . . ] · Wait until you hear the CD or DVD click into the center pivot of an optical drive before closing the tray. · When installing your hard disk, follow the instructions shipped with your hardware, and apply pressure only where needed on the device. 40 Appendix B. Use and care information Data safety · Do not delete unknown files or change the name of files or directories that were not created by you; otherwise, your computer software might fail to work. · Be aware that accessing network resources can leave your computer vulnerable to computer viruses, hackers, spyware, and other malicious activities that might damage your computer, software, or data. · It is your responsibility to ensure that you have adequate protection in the form of firewalls, antivirus software, and anti-spyware software and keep this software up to date. Take care in setting passwords · Remember your passwords. If you forget a supervisor or hard disk password, Lenovo authorized service providers will not reset it, and you might have to replace your system board or hard disk drive. Other important tips · Do not put the battery pack in trash that is disposed of in landfills. When disposing of the battery, comply with local ordinances or regulations and your company's safety standards. · Your computer might have both an Ethernet connector and a modem connector. If so, be sure to connect your communication cable to the correct one, so your connector is not damaged. · Register your Lenovo products with Lenovo (refer to the Web page: http://consumersupport. lenovo. com). This can help authorities return your computer to you if it is lost or stolen. The following sections provide information that can help you to keep your computer running smoothly. General tips for maintenance 1 Check the capacity of your hard disk drive from time to time. If the hard disk drive gets too full, Windows® will slow down and might produce errors. 2 Empty your recycle bin on a regular basis. 3 Use Diskeeper Lite or the Microsoft Disk Defragmenter on your hard disk drive on a regular basis to improve data seek and read time. · To free up disk space, uninstall unused application programs. · Clean out your Inbox, Sent, and Trash folders from your e-mail client program. · At least once a week, make a point to back up your data. If critical data is present, it is a good idea to perform a daily backup. Lenovo has many backup options available for your computer. CD-RW drives and CD-RW/DVD drives are available for most computers and are easily installed. · Use or schedule System Restore to take a system snapshot periodically. Note: Always take a system snapshot before installing new drivers, updating software, or installing new software. · Update device drivers and BIOS when needed. · Profile your machine at http://consumersupport. lenovo. com to keep up to date with current drivers and revisions. [. . . ] 58 for US users. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Numeric keypad (VAIO VGN-NW105J) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 D Display Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 O OneKey Rescue System button . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]