Lenovo 6306 manual Advanced settings, Exiting from the Setup Utility program

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Advanced settings

On some computer models, the Advanced settings menu includes a setting to enable or disable HyperThreading. This feature works only with HyperThreading-aware operating systems, such as Microsoft Windows Vista and Windows XP. The default setting for HyperThreading is Enabled. However, if you select Set Defaults and are using an operating system other than Windows Vista or Windows XP, your computer performance might be degraded. Therefore, you should always set HyperThreading to Disabled unless you are sure your operating system supports HyperThreading.

Exiting from the Setup Utility program

After you finish viewing or changing settings, press Esc to return to the Setup Utility program menu (you might have to press Esc several times). If you want to save the new settings, select Exit → Save Changes and Exit. Otherwise, your changes will not be saved.

22User Guide

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Contents Machine Type Page ThinkCentre User Guide Page Contents Iv User Guide Introduction Vi User Guide Important safety information User Guide Arranging your workspace ComfortGlare and lighting Air circulation Electrical outlets and cable lengthsSetting up your computer Connecting your computerUser Guide Setting up your computer User Guide 1 Turning on computer power Finishing the software installationUpdating your operating system Installing other operating systemsCompleting important tasks Updating your antivirus softwareInstalling external options Features System informationExpansion Specifications For machine typeUser Guide Software overview Software provided with your Windows operating systemSoftware provided by Lenovo User Guide Viewing and changing settings Using the Setup UtilityStarting the Setup Utility program Using passwordsSetting, changing, and deleting a password User PasswordAdministrator Password Enabling or disabling a deviceSelecting a startup device Selecting a temporary startup deviceSelecting or changing the startup device sequence Advanced settings Exiting from the Setup Utility programUsing system programs Updating flashing Bios from a diskette or a CD/DVD-ROMUpdating system programs Updating flashing Bios from your operating system Recovering from a POST/BIOS update failureTroubleshooting and diagnostics Basic troubleshootingDiagnostic programs PC-Doctor for Windows PC-Doctor for DOSRunning diagnostics from the Rescue and Recovery workspace PC-Doctor for Windows PECleaning the mouse Optical mouseNon-optical mouse 4 Ball cage Recovering software Creating and using the Product Recovery discPerforming backup and recovery operations Using the Rescue and Recovery workspace Creating and using rescue media To create rescue media, do the followingCreating and using a Recovery Repair diskette To use rescue media, do one of the followingRecovering or installing device drivers Setting a rescue device in the startup sequenceSolving recovery problems User Guide Online Books folder Getting information, help, and serviceInformation resources Lenovo CareAccess Help Safety and WarrantyHelp and service Using the documentation and diagnostic programsCalling for service Using other services Purchasing additional servicesAppendix A. Manual modem commands Basic AT commandsLow speaker volume Extended AT commands Enable RTS/CTS hardware flow controlMNP/V.42/V.42bis/V.44 commands +MS=?Fax Class 1 commands Fax Class 2 commandsVoice commands Appendix A. Manual modem commands User Guide Appendix B. Notices Television output notice TrademarksIndex Installing operating system 11 software Page User Guide Page Part Number 53Y7512