HP 2542EA, 2500, 2185AF, 2158, 2505EA, 2510AP, 2508EA, 2156EA, 2117AP manual Operating System OS CD Repair

Page 107

Troubleshooting

To restore the notebook to a previous date and time when it was functioning optimally:

1.Select Start > Help & Support > Tools > System Restore.

2.Follow the on-screen directions for restoring the notebook.

Operating System (OS) CD Repair

To repair the operating system without deleting your personal data, use the standard Microsoft OS CD that was shipped with the notebook. This CD contains the following preinstalled operating systems:

■Microsoft Windows XP Home or Pro (depending on configuration)

■Appropriate service pack

To repair the operating system:

1.Connect the notebook to external power and turn on the notebook.

2.Immediately insert the OS CD into the notebook.

3.Press and hold the power button for 5 seconds to turn off the notebook.

4.Press the power button again to start the notebook.

5.When prompted, press any key to boot from CD. After a few minutes, the Welcome to Setup screen is displayed.

6.Press enter to continue. A Licensing Agreement screen is displayed.

7.Press F8 to accept the agreement and continue. The Setup window opens.

8.Press R to repair the selected Windows installation. The repair process begins. This process takes 1 to 2 hours to complete. The notebook restarts in Windows after the process is complete.

6–30

Reference Guide

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Contents Reference Guide Page Software Product License Agreement Software Product License Agreement Reference Guide Software Product License Agreement Contents To Type Alternate Graphics Using Battery Packs and Power ManagementAdd-On Devices TroubleshootingModem and Network Connections Reference Information Index Identifying Parts of the Notebook Getting Started with Your NotebookFront Panel and Right Panel Components Getting Started with Your Notebook Left Panel and Back Panel Components Getting Started with Your Notebook Bottom Panel Components Getting Started with Your Notebook Status Lights Getting Started with Your Notebook Insert the Battery Pack Setting Up Your NotebookConnect AC Power Connect a Phone Line Turn On the Notebook Set Up Windows Operating Your Notebook Basic OperationPower mode To enter this mode Function Default Power SettingsTo Change the Boot Device To Reset the NotebookTo Use the TouchPad TouchPad on-off button and indicator lightTo Use the Tap to Click Function of the TouchPad This hot key Does this To Use the Function Hot KeysTo Use the One-Touch Buttons This key combination Does this To Use the Windows and Applications KeysTo Type Alternate Graphics Using the ALT GR Key To Insert or Remove a CD or DVD Using CDs or DVDsTo Create or Copy CDs To Play DVD MoviesTo Write to DVD Media To Set Up Password ProtectionSecuring Your Notebook To Lock Your Notebook To Attach a Security Cable To Lock the Hard Drive To Protect Against VirusesTo Maintain Your Notebook Taking Care of Your NotebookTo Protect Your Hard Drive To Extend the Life of the Display To Safeguard Your DataTo Clean Your Notebook Managing Power Consumption Battery Packs and Power ManagementWhen this occurs Result is To resume How the Notebook Manages Power AutomaticallyTo Change Timeout Settings and Create Power Schemes Using Battery PowerFrom the Windows taskbar To Check Battery StatusTo Recharge the Battery Pack To Respond to a Low-Battery WarningTo Get the Most from Your Battery Packs Battery Packs and Power Management Modem and Network Connections Using the ModemTo Connect the Modem Special Restrictions in Certain Countries To Change Your Modem Settings Connecting to a Local Area Network LAN Using a Wireless LAN Adapter Modem and Network Connections Making Wireless Network Connections Select Models Only Creating a New Computer-to-Computer Ad Hoc Network Connecting to a Wireless NetworkChecking the Wireless Connection Status To Prepare for ConnectionsTo Turn Wireless Communication On and Off Turning Off Communication and Ending a Connection Turning On Communication and Making a ConnectionInserting a PC Card Connecting External DevicesTo Insert or Remove a PC Card Removing a PC Card To Connect an Audio Device To Use an External Monitor Connecting an External MonitorAdjusting Monitor Resolution and Other Settings Using Dual Display Mode To Connect an Infrared Device Select Models Only To Connect a 1394 Device Select Models OnlyTransferring Files Through an Infrared Connection Using the Infrared PortAvoiding Standby While Using Infrared Printing to an Infrared PrinterTo Dock to the Port Replicator To Use a Port Replicator Select Models OnlyAdd-On Devices To Undock from the Port Replicator To Install a RAM Expansion Module Installing Additional RAM MemoryReplace the cover Insert the battery pack To Remove a RAM Expansion Module To Replace the Hard Drive Replacing the Hard DriveAdd-On Devices To Replace the Hard Drive Holder To Prepare a New Hard Drive Troubleshooting Your Notebook TroubleshootingIf You Hear Loud, High-Pitched Feedback from the Speakers Audio ProblemsIf No Sound Is Audible If Sound Does Not RecordIf a DVD Plays Erratically CD-ROM and DVD ProblemsIf You Cannot Boot from a CD or DVD If You Get a Region Code Error When Playing a DVD MovieIf the Screen Is Difficult to Read Display ProblemsIf a DVD Movie Does Not Fill the Screen If the Notebook Is On, But the Screen Is BlankIf Files Are Corrupted Hard Drive ProblemsIf the Notebook Hard Drive Does Not Spin If the Hard Drive Makes a Buzzing or Whining NoiseIf You Have Problems with Infrared Communications Heat ProblemsInfrared Problems Keyboard and Pointing Device ProblemsIf a PS/2 Scroll Mouse Does Not Work If the Pointer Is Difficult to ControlIf the TouchPad Does Not Work If the TouchPad Moves the Pointer or Cursor While You TypeIf a Network Connection Responds Slowly Local Area Network LAN ProblemsIf the Built-In Network Adapter Does Not Connect to the LAN If You Cannot Log In to Netware ServersModem Problems Memory ProblemsIf the Modem Dials Incorrectly If the Modem Does Not Dial or No Dial Tone Is DetectedIf the Modem Connects, But Transferred Data Is Bad If the Modem Dials, But Does Not ConnectIf the Modem Is Not Detected If the Modem Dials, But You Cannot Hear ItPC Card Pcmcia Problems If the Notebook Pauses or Runs Sluggishly Performance ProblemsIf a Network PC Card Stops Communicating Properly If a PC Card Modem Is Not WorkingIf the Notebook Turns Off Immediately After It Turns On Power and Battery Pack ProblemsIf the Notebook Stops Responding If the Notebook Has a Short Operating Time If the Notebook Does Not Enter Hibernation as Expected If the Time Remaining for the Battery Pack Is Not CorrectIf the Notebook Does Not Enter Standby Mode as Expected If an Infrared Printer Does Not Print Printing ProblemsIf a Serial or Parallel Printer Does Not Print If the Left Edge of Printed Output Is MissingIf a Serial Modem Does Not Work Properly Serial, Parallel and USB ProblemsIf a Serial Mouse Does Not Work If the Serial or Parallel Port Is Not Working Startup ProblemsIf the Notebook Does Not Respond When You Turn It On If the Notebook Will Not Boot from Battery PowerIf the Notebook Stops Responding After Booting If the Notebook Will Not Boot from the Diskette DriveIf You Have Problems with Wireless 802.11 Communication Wireless ProblemsIf You Can Connect, But the Network Is Slow To Run the Bios Setup Utility Configuring Your NotebookMain Menu System Devices Menu Boot Menu Exit Menu To Change Video Memory Settings Using Bios Setup Utility Safeguarding Your Data Operating System OS CD Repair OS CD Reinstall Restoring Software Applications Reinstalling DriversModem Reference Conexant Modem Reference InformationConexant AT Commands Advanced Users Only Command Conexant +DS44 = a,b Conexant AT Commands Advanced Users Only +PMHF Qcpc +MCR ECC Commands +ESR=0 FAX Class Voice Commands Voice Commands Registers Conexant Selected Result Codes Conexant Power Cords Safety InformationBattery Safety LED Safety Laser SafetyExposure to Radio Frequency Radiation Mercury SafetyConnections to Peripheral Devices Wireless NoticeRegulatory Information Reference Information Reference Information Declaration of Conformity U.S.A CanadaEuropean Union 0682Reference Information Reference Information Japan Korea 4DSConexant AMC20493-KT5 Data Fax Modem PTC 211/02/071 New ZealandPTC200 7.5.2 3 4 Ringer Sensitivity International Russia BrazilEMC Radio Index Index Index-3 Index-4 RAM Index-6 Index-7
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2550CA, 2542EA, 2562AP, 2569AP, 2555AP specifications

The HP 2135US is a versatile all-in-one desktop computer designed to meet the needs of home and small office users. This robust machine is particularly attractive for individuals who seek a blend of performance, aesthetics, and user-friendly features.

At the heart of the HP 2135US is its powerful Intel Core processor. This series of CPUs provides reliable performance for multitasking and productivity tasks, ensuring smooth operation whether you're working on documents, browsing the web, or streaming multimedia content. Complementing the processor is a competent amount of RAM, allowing users to run multiple applications simultaneously without experiencing slowdowns.

The computer features a vibrant display that brings visuals to life. With high resolution and excellent color accuracy, the HP 2135US is ideal for photo editing, video playback, and gaming. The screen's size also contributes to an immersive experience, making it suitable for both leisure and professional uses.

Storage is another significant feature of the HP 2135US. It comes equipped with a sizeable hard drive, providing ample space for files, applications, and media libraries. Furthermore, the device offers options for solid-state drives, which enhance the system's speed and responsiveness. This blend of storage solutions ensures that users can choose configurations that best fit their needs.

Connectivity is a strong suit of the HP 2135US, as it includes a range of ports and wireless options. Multiple USB ports allow for easy connection of peripherals such as printers, keyboards, and external storage devices. Additionally, integrated Wi-Fi and Bluetooth capabilities enable seamless networking and device pairing, enhancing the overall user experience.

The integrated graphics in the HP 2135US ensures decent performance for everyday tasks and light gaming. Combined with its multimedia features, the computer serves as a capable entertainment hub for users who enjoy watching movies or playing games.

In terms of design, the HP 2135US boasts a sleek, modern aesthetic that fits well in any environment. Its compact form factor makes it space-efficient, an important consideration for users with limited workspace. The ergonomics of the design also contribute to comfortable usage over extended periods.

To sum up, the HP 2135US represents a blend of performance, connectivity, and design sophistication. Its comprehensive set of features makes it an excellent choice for users seeking an all-in-one solution for both work and play, proving itself to be a worthy addition to any modern workspace or home office setup.
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