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Lenovo B450 manual Troubleshooting, A Password problem

Models: B450

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A Password problem

Chapter 5. Troubleshooting

My screen goes blank while	• Your screen saver or power management may be
the computer is on.	enabled. Do one of the following to exit from the
	screen saver or to resume from sleep or hibernation
	mode:
	- Touch the touchpad.
	- Press any key on the keyboard.
	- Press the power button.

A Password problem

I forgot my password.	• If you forget your user password, you must take
	your computer to a Lenovo authorized servicer or a
	marketing representative to have the password
	changed.
	• If you forget your HDD password, a Lenovo
	authorized servicer cannot reset your password or
	recover data from the hard disk. You must take your
	computer to a Lenovo authorized servicer or a
	marketing representative to have the hard disk drive
	replaced. Proof of purchase is required, and a fee will
	be charged for parts and service.
	• If you forget your supervisor password, a Lenovo
	authorized servicer cannot reset your password. You
	must take your computer to a Lenovo authorized
	servicer or a marketing representative to have the
	system board replaced. Proof of purchase is
	required, and a fee will be charged for parts and
	service.

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Lenovo B450 manual Troubleshooting, A Password problem

Contents

User Guide Lenovo B450First Edition July Copyright Lenovo Dear user Respective UsersExplanation of hard disk capacity Page Page Contents Notice on deleting data from Important safety information Important safety information„Read this first Unpack Important safety informationDanger Working place Important safety informationDanger DangerOn using Important safety informationDanger DangerDo NOT wrap the power cord around the power adapter or other objects Service and upgrades Important safety informationviii b c d Chapter 1. Getting to know your computerTop view Chapter 1. Getting to know your computer Chapter 1. Getting to know your computer Left-sideviewa b c d e f jackOptical drive Right-sideviewUSB ports Reads/Burns optical disksswitch wireless devicewireless devices on your computer Chapter 1. Getting to know your computerBottom view Battery latch - spring loaded Battery packChapter 1. Getting to know your computer Fan louvers„Connect to the power Chapter 2. Learning the basics„Read the manuals „Turn on the computer „Configure the operating systemChapter 2. Learning the basics Putting your computer into sleep stateChapter 2. Learning the basics „Shutting down your computerStart menu „Checking battery status Using AC adapter and battery„Charging the battery „Removing the battery pack „Handling the battery Chapter 2. Learning the basics Using the touchpadTouchpad Click button„Numeric keypad Using the keyboard„Function key combinations Enter sleep mode Chapter 2. Learning the basics Special keys and buttonsOneKey Rescue System button Hard disk drive indicator System status indicatorsWireless communication indicator Chapter 2. Learning the basics„Attaching a security lock not supplied Securing your computerscreen in BIOS setup utility „Using passwords„Using memory cards not supplied Connecting external devices„Inserting a memory card „Connecting a universal serial bus USB device„Removing a memory card Chapter 3. Using the Internet Wired connectionChapter 3. Using the Internet „Software configuration„Hardware connection CableWi-Fi Wireless connectionChapter 3. Using the Internet „Using Wi-Fispecific models onlyEnabling wireless connection Software configurationChapter 4. OneKey Rescue System OneKey Rescue System„Introduction Chapter 4. OneKey Rescue System Shut down your computer Frequently Asked Questions Chapter 5. TroubleshootingWhere are the recovery discs? Chapter 5. TroubleshootingWhere can I find warranty information? How can I install the device drivers?What can I do if the backup process fails? Chapter 5. Troubleshooting TroubleshootingDisplay problems A Password problem Chapter 5. TroubleshootingKeyboard problems Chapter 5. TroubleshootingSleep or hibernation problems Fn + InsertIf the computer does not return from sleep mode, it may have entered hibernation mode automatically because the battery is depleted. Check the power indicator Computer screen problems Chapter 5. TroubleshootingSound problems Chapter 5. TroubleshootingBattery problems A hard disk drive problemA startup problem Chapter 5. TroubleshootingOneKey Rescue System problems Other problemsDo not connect or disconnect any external device Chapter 6. Upgrading and replacing devices Replacing the battery„To replace the battery Chapter 6. Upgrading and replacing devices Chapter 6. Upgrading and replacing devices Replacing the hard disk driveHandling a hard disk drive To replace the hard disk drive, do the following 5 Pull the tab in the direction shown by arrow AReinstall the screws BReinstall the battery pack 0Reinstall the compartment coverChapter 6. Upgrading and replacing devices Replacing memory Chapter 6. Upgrading and replacing devices 6Press outwards on the latches on both edges of the socket at the same time, remove the SO-DIMM.Be sure to save the old SO-DIMMfor future use Page To remove the optical drive, do the following Removing the optical driveRemove the screw shown in the figure Gently pull the optical drive outSetup Poster Appendix A. Getting help and service Calling the customer support center Getting help on the WebThe following items are not covered Machine Type and Model Getting help around the world Lenovo warranty service telephone numbers„Be careful about where and how you work Appendix B. Use and care informationCaring for your computer Appendix B. Use and care information „Notice of static-electricity„Carry your computer properly „Be gentle with your computer„Handle storage media and drives properly „For outdoor use„Take care in setting passwords „Data safety„Other important tips Memory module „Ergonomic information Accessibility and comfort„Questions about vision? „What if you are traveling?„General tips for maintenance MaintenanceUpdate device drivers and BIOS when needed „Cleaning the cover of your computer „Cleaning your computer keyboard „Cleaning your computer display „What this warranty covers Appendix C. Lenovo limited warrantyAppendix C. Lenovo limited warranty „How to obtain warranty serviceinformation.” „Replacement of a product or part „Use of personal information „Your additional responsibilities„What this warranty does not cover „Limitation of liability „Dispute resolution „European Economic Area EEA „Other rightsLENOVO TECHNOLOGY B.V. TURKIYE ISTANBUL SUBESI „Lenovo Turkey addressPosta Kodu Tel Fax Warranty information Appendix C. Lenovo limited warranty „Types of warranty service1 Customer Replaceable Unit “CRU” Service 2On-siteService Appendix C. Lenovo limited warranty3Courier or Depot Service 4Customer Carry-Inor Mail-InService5Product Exchange Service Appendix C. Lenovo limited warrantyAppendix D. Customer replaceable units CRUs Appendix D. Customer replaceable units CRUs Notices Appendix E. NoticesLenovo United States, Inc 1009 Think Place - Building One Morrisville, NCAppendix E. Notices „Export classification notice „Wireless interoperability Wireless related information„Usage environment and your health „Safety information related to Mobile Broadband 3Use of mobile devices on board aircraft is explicitly prohibited by many airlines companies, especially during take-offand landing. The built-inMobile Broadband module on your computer is a low-powerradio transceiver. When it is turned on, it intermittently receives and transmits radio frequency RF energy which could cause interference with the operation of the airplane communication or navigation system. Refer to rules or regulations of your airline company for Mobile Broadband use. Never enable Mobile Broadband feature on your computer unless you are explicitly permitted to do so „Federal Communications Commission FCC Statement Electronic emissions noticesResponsible party „German Class B Compliance Statement Deutschland Page „Japanese VCCI Class B Statement „Lenovo Product Service InformationAppendix E. Notices „Korea Class B Türkiye EEE Yönetmeliğine Uygunluk Beyanı Turkish statement of complianceWEEE and recycling statements „General recycling statementEU WEEE statements Japan recycling statements „Disposing of a Lenovo Computer Components Notice for users in the U.S.A Notice on deleting data from your hard diskFormat your hard disk, using the software for initializing it Model Name Lenovo B450 Appendix F. Features and SpecificationsForm Factor SystemI/O Ports Appendix F. Features and SpecificationsUSB 2.0 x 4 ports RJ-45portTrademarks Index Index Interoperability Warranty informationLENOVO If your product is not working correctlyDO NOT RETURN IT TO THE STORE New World. New Thinking.TM