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Lenovo B490, 59366616 manual Using the recovery button, B590

Models: B490 B590 59366616

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B490

The keyboard has keys that can work as a 10-key numeric keypad when enabled. To enable or disable the keypad, press Fn+F8.

B590

The keyboard has a separate numeric keypad. To enable or disable the keypad, press the Numeric Lock key (NmLk).

Note: The numeric lock indicator is on when the numeric keypad is enabled.

Using the recovery button

Note: Your computer might look different from the above illustration.

Chapter 2. Using your computer 15

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Lenovo B490, 59366616 manual Using the recovery button, B590

Contents

User Guide Lenovo B490 and B590First Edition October Copyright Lenovo Safety, Warranty, and Setup Guide Regulatory Notice“Important safety information” on page Appendix D “Notices” on page Contents statements Appendix B. WEEE and recyclingAppendix C. Restriction of Hazardous Substances Directive RoHSProtect yourself from the heat generated by the ac power adapter Read this firstProtect yourself from the heat that your computer generates Prevent your computer from getting wetConditions that require immediate action Important safety informationProtect your computer and data when moving it Handle your computer gentlyhttp//support.lenovo.com Safety guidelinesService and upgrades Extension cords and related devices Power cords and power adaptersPlugs and outlets DANGERGeneral battery notice Power supply statementExternal devices DANGERLithium coin cell battery notice Rechargeable battery noticeReplace only with a battery of the type recommended by Lenovo Keep the battery pack away from fireAirflow temperatures into the computer should not exceed 35C 95F Heat and product ventilationCalifornia Perchlorate Information Perchlorate Material - special handling may apply, SeeLaser compliance statement Electrical current safety informationDANGER To avoid a shock hazardAdditional safety information Using headphones or earphonesLiquid crystal display LCD notice DANGERxii User Guide Top view Chapter 1. Getting to know your computerWireless module antennas Left-side viewPower button Recovery buttonMonitor connector Right-side viewEthernet connector HDMI connectorUSB connectors Front viewac power connector Status indicatorsBottom view Status indicatorsBattery latch manual BatteryNumeric Lock indicator Caps Lock indicatorDevice access status indicator Figure 6. Status indicators of Lenovo B490 and B5904 Power and battery status indicator FeaturesSpecifications Frequently asked questions Chapter 2. Using your computerConnecting to power Tips on using your computerConfiguring the operating system Reading the manualsChecking the battery status Using the ac power adapter and the battery pack2. Click Settings 2. Click SettingsCharging the battery Using the ac power adapterMaximizing the battery life Connecting the ac power adapterDANGER Do not attempt to disassemble or modify the battery pack Handling the batteryReplace only with a battery of the type recommended by Lenovo Keep the battery pack away from fireUsing the keyboard Using the touch padNumeric keypad Keep it away from childrenB590 Using the recovery buttonB490 Launching the camera and audio settings Fn+Esc Function key combinationsVolume controls Fn + Left/Right arrow Adjusting display brightness level Fn + Up/Down arrowUsing the media card reader Connecting to external devicesDisplay backlight feature Fn+F2 Switching the display output location Fn+F3Using the NVIDIA Optimus Graphics feature Using USB connectorsInserting a flash media card Removing a flash media cardWired connection Chapter 3. Connecting to the networkHardware connection CableHardware connection Software configurationWireless connection Chapter 3. Connecting to the network Software configuration22 User Guide Ergonomic information Accessibility and comfortChapter 4. You and your computer 24 User Guide What if you are traveling?Questions about vision? Attaching a mechanical lock Using passwordsChapter 5. Security 26 User Guide Solving recovery problems on the Windows 7 operating system Chapter 6. Recovery overviewRefreshing your computer settings Using the Windows recovery program on the Windows 8 operating systemChange PC settings General Resetting your computer settingsChapter 6. Recovery overview 30 User Guide Static electricity prevention Replacing the batteryChapter 7. Replacing devices Prerequisites for the procedure DANGER Replacing the backup batteryReplace only with a battery of the type recommended by Lenovo Keep the battery pack away from fireReplace only with a battery of the type recommended by Lenovo Prerequisites for the procedure DANGERKeep the battery pack away from fire Do not expose it to excessive heat Do not expose it to water or rainPrerequisites for the procedure Replacing the hard disk drivePrerequisites for the procedure Replacing a memory module4. Remove the screws DANGER Replacing the PCI Express Mini Card for wireless LAN/WiMAX connectionPrerequisites for the procedure DANGER 38 User Guide Removing the optical drive5. Remove the screw 40 User Guide General tips for preventing problems Chapter 8. Preventing problemsBe careful about where and how you work Taking care of your computerBe gentle with your computer Carry your computer properlyClean the cover of your computer Take care in setting passwordsChapter 8. Preventing problems Handle storage media and drives properlyCleaning your computer display Cleaning your computer keyboardRegistering your computer Be sure not to modify your computerTroubleshooting Chapter 9. Troubleshooting computer problemsBattery and power problems Battery problemsAn ac power adapter problem Computer screen problemsA startup problem Sleep and hibernation problemsHard disk drive problems Problems with drives and other storage devicesThe screen is unreadable or distorted Incorrect characters are displayed on the screenA password problem OneKey Recovery Pro program problemsOptical drive problems Backup cannot be madeOther problems A sound problemYour computer does not respond The computer does not start from a device you want50 User Guide Wireless interoperability Wireless related informationAppendix A. Regulatory information Usage environment and your health ENERGY STAR model informationFederal Communications Commission FCC Declaration of Conformity Export classification noticeElectronic emission notices Deutschland Industry Canada Class B emission compliance statementGerman Class B compliance statement Deutschsprachiger EU Hinweis Japan VCCI Class B compliance statement Lenovo product service information for TaiwanKorea Class B compliance statement 56 User Guide China WEEE statement Important WEEE Information Appendix B. WEEE and recycling statementsJapan recycling statements Collecting and recycling a disused Lenovo computer or monitorDisposing of a disused battery pack from Lenovo notebook computers Recycling information for BrazilDisposing of Lenovo computer components Disposing of disused lithium batteries from Lenovo computersBattery recycling information for the United States and Canada Battery recycling information for the European UnionBattery recycling information for Taiwan Appendix B. WEEE and recycling statements60 User Guide Ukraine RoHS Appendix C. Restriction of Hazardous Substances Directive RoHSChina RoHS Turkish RoHS RoHS compliant as per E-Waste Management & Handling Rules India RoHSMorrisville, NC U.S.A Attention Lenovo Director of Licensing Appendix D. NoticesLenovo United States, Inc 1009 Think Place - Building One Trademarks Index 66 User Guide