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Lenovo ThinkCentre Edge 91 (English) User Guide - Page 41

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For more information about how to use your antivirus software, refer to the help system of your antivirus software. Chapter 4. Security 29

Section	Page
Important safety information	7
Service and upgrades	7
Static electricity prevention	7
Power cords and power adapters	8
Extension cords and related devices	8
Plugs and outlets	9
External devices	9
Heat and product ventilation	9
Operating environment	10
Modem safety information	10
Laser compliance statement	11
Power supply statement	11
Cleaning and maintenance	11
Chapter 1. Product overview	13
Features	13
Specifications	17
Software overview	17
Software provided by Lenovo	18
Adobe Reader	20
Antivirus software	20
Locations	20
Locating connectors, controls, and indicators on the front of yo	21
Locating connectors on the rear of your computer	22
Locating components	24
Locating parts on the system board	25
Locating internal drives	26
Machine type and model label	27
Chapter 2. Using your computer	29
Frequently asked questions	29
Using the keyboard	29
Using Windows shortcut keys	29
Using a fingerprint reader	30
Using the wheel mouse	30
Adjusting audio	30
About your computer audio	30
Setting the volume from the desktop	31
Setting the volume from Control Panel	31
Using CDs and DVDs	31
Handling and storing CD and DVD media	31
Playing a CD or DVD	32
Recording a CD or DVD	32
Chapter 3. You and your computer	33
Accessibility and comfort	33
Arranging your workspace	33
Comfort	33
Glare and lighting	34
Air circulation	34
Electrical outlets and cable lengths	34
Register your computer with Lenovo	35
Moving your computer to another country or region	35
Voltage-selection switch	35
Replacement power cords	35
Chapter 4. Security	37
Security features	37
Locking the computer cover	37
Attaching an integrated cable lock	39
Using passwords	39
BIOS passwords	39
Windows passwords	40
Configuring the fingerprint reader	40
Using and understanding firewalls	40
Protecting data against viruses	40
Chapter 5. Installing or replacing hardware	43
Handling static-sensitive devices	43
Installing or replacing hardware	43
Installing external options	43
Removing the computer cover	44
Removing and reinstalling the front bezel	45
Installing or replacing a PCI card	46
Installing or replacing a memory module	49
Replacing the battery	51
Replacing the primary hard disk drive	53
Replacing the optical drive	54
Replacing the power supply assembly	57
Replacing the heat sink and fan assembly	58
Replacing the microprocessor	60
Replacing the rear fan assembly	63
Replacing the front audio and USB assembly	64
Replacing the keyboard or mouse	65
Completing the parts replacement	66
Chapter 6. Recovery information	69
Creating and using recovery media	69
Creating recovery media	69
Using recovery media	70
Performing backup and recovery operations	70
Performing a backup operation	70
Performing a recovery operation	71
Using the Rescue and Recovery workspace	71
Creating and using a rescue medium	72
Creating a rescue medium	72
Using a rescue medium	72
Reinstalling preinstalled applications and device drivers	73
Reinstalling software programs	74
Reinstalling device drivers	74
Solving recovery problems	74
Chapter 7. Using the Setup Utility program	77
Starting the Setup Utility program	77
Viewing and changing settings	77
Using passwords	77
Password considerations	78
Power-On Password	78
Administrator Password	78
Hard Disk Password	78
Setting, changing, and deleting a password	78
Erasing lost or forgotten passwords (clearing CMOS)	79
Enabling or disabling a device	79
Selecting a startup device	80
Selecting a temporary startup device	80
Selecting or changing the startup device sequence	80
Enabling ErP compliance mode	80
Smart performance choices	81
Exiting the Setup Utility program	81
Chapter 8. Updating system programs	83
Using system programs	83
Updating (flashing) the BIOS from a disc	83
Updating (flashing) the BIOS from your operating system	84
Recovering from a POST/BIOS update failure	84
Chapter 9. Preventing problems	85
Keeping your computer current	85
Getting the latest device drivers for your computer	85
Updating your operating system	85
Using System Update	85
Cleaning and maintenance	86
Basics	86
Cleaning your computer	87
Good maintenance practices	88
Moving your computer	88
Chapter 10. Troubleshooting and diagnostics	89
Basic troubleshooting	89
Troubleshooting procedure	90
Troubleshooting	90
Audio problems	91
CD problems	92
DVD problems	93
Intermittent problems	95
Keyboard, mouse, or pointing device problems	95
Monitor problems	97
Networking problems	98
Option problems	101
Performance and lockup problems	102
Printer problems	103
Serial port problems	104
Software problems	104
USB problems	105
Diagnostic programs	105
Lenovo Solution Center	106
Lenovo ThinkVantage Toolbox	106
PC-Doctor for DOS	106
Chapter 11. Getting information, help, and service	109
Information resources	109
Lenovo ThinkVantage Tools	109
Lenovo Welcome	109
Help and Support	109
Safety and Warranty	109
Lenovo Web site	109
Lenovo Support Web site	110
Help and service	110
Using the documentation and diagnostic programs	110
Calling for service	110
Using other services	111
Purchasing additional services	111
Appendix A. Notices	113
Trademarks	114
Appendix B. Regulatory information	115
Export classification notice	115
Television output notice	115
Electronic emissions notices	115
Federal Communications Commission Declaration of Conformity	115
Additional regulatory information	117
Appendix C. WEEE and recycling information	119
Important WEEE information	119
Recycling information	119
Recycling information for Brazil	120
Battery recycling information for Taiwan	120
Battery recycling information for the European Union	121
Appendix D. Restriction of Hazardous Substances Directive (RoHS)	123
China RoHS	123
Turkish RoHS	123
Ukraine RoHS	123
India RoHS	124

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For more information about how to use your antivirus software, refer to the help system of your antivirus

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Chapter 4

Security