Dell A840, A860 Using the Drivers and Utilities Media, Click the Drivers tab→ Roll Back Driver

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Reinstalling Software

NOTE: The User Account Control window may appear. If you are an administrator on the computer, click Continue; otherwise, contact your administrator to enter the Device Manager.

3Right-click the device for which the new driver was installed and click Properties.

4Click the Drivers tab→ Roll Back Driver.

If Device Driver Rollback does not resolve the problem, then use System Restore (see "Restoring Your Operating System" on page 54) to return your computer to the operating state that existed before you installed the new driver.

Using the Drivers and Utilities Media

If using Device Driver Rollback or System Restore (see "Restoring Your Operating System" on page 54) does not resolve the problem, reinstall the driver from your Drivers and Utilities media.

1With the Windows desktop displayed, insert your Drivers and Utilities media.

If this is your first time to use the Drivers and Utilities media, go to step 2. If not, go to step 5.

2When the Drivers and Utilities media installation program starts, follow the prompts on the screen.

NOTE: In most cases, the Drivers and Utilities program starts running automatically. If it does not, start Windows Explorer, click your media drive directory to display the media contents, and then double-click the autorcd.exe file.

3When the InstallShield Wizard Complete window appears, remove the Drivers and Utilities media and click Finish to restart the computer.

4When you see the Windows desktop, reinsert the Drivers and Utilities media.

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Contents Vostro A840/A860 Setup Quick Reference Guide Macrovision Product Notice Contents Dell Support Center Reinstalling Software Restoring Your Operating SystemFinding Information Obtaining AssistanceIndex Contents About Your Computer Front ViewAttach headphones to the connector Attach a microphone to Right ViewTurns on when the scroll lock function is enabled D E M C O N N E C T O R RJLeft View USB C O N N E C T O R SConnects video devices, such as a monitor Battery Removal To remove the battery Ensure that the computer is turned off About Your Computer Quick Setup Quick SetupConnect the AC adapter to the AC adapter Connecting to the Internet Setting Up Your Internet ConnectionMicrosoft Windows Vista Operating System Choose Dial-up if you will use a dial-up modem or IsdnTransferring Information to a New Computer Quick Setup Specifications 512 MB, 1 GB, 2 GB GB capable Memory type DDR2 SodimmVideo Hole connector Ieee Pin mini USBIn-1 combo card connector Connector Cards supportedWireless Internal Wlan and Bluetooth wirelessMicrophone-in connector, stereo Headphones/speakers connectorVideo Vostro A840 Vostro A860 Video type Integrated on system board, hardwareActive area X/Y 303.36 x 344.23 x Dimensions Audio Vostro A840 Vostro A860 Speaker One 4-ohm speaker206 mm 8.11 inches 209.5 mm 8.24 inches 320 mm 12.6 inches 359.3 mm 14.14 inches15/30 Pixel pitch 2373 255 Power Consumption Display Vostro A840 Vostro A860 Viewing angles40/40 Max with no inverter lossesTouch Pad Vostro A840 Vostro A860 240 cpiSize 53.4 mm 2.10 inches40 to 65C -40 to 149F Coin-cell battery CR-2032 To 35C 32 to 95FContinuous Output power 65 W Rated output voltage 137.2 mm 5.4 inches Weight with cables Kg 0.9 lbInput frequency 50-60 Hz Output current +/-1.0 VDCPhysical Vostro A840 Vostro A860 Height AC Adapter Vostro A84003 kg 4.47 lb 46 kg 5.42 lb Spectrum that simulates user environment Grms110 G 163 G Airborne containment level G2 or lower as defined byTroubleshooting Error MessagesDo not use these characters in filenames T E N D E D M E M O R Y S I Z E H a SHARD-DISK Drive Controller Failure Y B O a R D C L O C K L I N E F a I L U R E For Troubleshooting Optional ROM has failed. Contact Dell see Contacting Dell on Try again System Messages Troubleshooting Software and Hardware Problems A.R.T error, possible hard drive failureDell Diagnostics When to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard DriveInsert the Drivers and Utilities media Shut down and restart the computerPower Problems Troubleshooting TipsFollow these tips when troubleshooting your computer Ensure that the display is connected and powered on T H E P O W E R L I G H T I S B L I N K I N GMemory Problems Run the Dell Diagnostics see Dell Diagnostics on Lockups and Software Problems Computer does not start upComputer stops responding Program crashes repeatedly Program stops respondingSolid blue screen appears Dell Technical Update Service Other software problemsDell Support Center Alerts technical support alerts relevant to your computer Reinstalling Software Reinstalling Drivers and UtilitiesDrivers Identifying DriversUsing the Drivers and Utilities Media Click the Drivers tab→ Roll Back DriverManually Reinstalling Drivers You can restore your operating system in the following ways Using Microsoft Windows System RestoreRestoring Your Operating System Using the Operating System Media Click StartClick Next and follow the remaining prompts on the screen Click Undo my last restoration and click NextReinstalling Windows Reinstalling Software Reinstalling Software Document/Media/Label Contents Code Service Tag/ExpressFinding Information Computer Drivers and Utilities MediaCD or DVD that may have Shipped with your computer Support DocumentationThis type of information may Have shipped with yourDocument/Media/Label Contents Dell Technology Guide Available at support.dell.comFinding Information Getting Help Fill out the Diagnostics Checklist onObtaining Assistance Technical Support and Customer Service Online ServicesAutoTech Service Problems With Your Order Returning Items for Warranty Repair or CreditAutomated Order-Status Service Product InformationRemember to fill out the Diagnostics Checklist Before You CallGetting Help Contacting Dell Getting Help Index License label Media Drivers and Utilities Service Tag Setup Power light conditions, 44 program crashes Warranty information Windows License label Windows Vista Program Compatibility wizard WizardsIndex