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Question posted by fab15jef on May 1st, 2015

Black Screen On Defrag

When ask to reboot on defragment to complete the process, Black screen on reboot.

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Answer #1: Posted by hzplj9 on May 1st, 2015 12:21 PM

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This is the primary link to the hp site for your device.

http://support.hp.com/us-en/product/Compaq-Presario-CQ42-400-Notebook-PC-series/4346196/model/5052999?cc=us&lang=en

Check this link regarding black screens on laptops.

http://support.hp.com/us-en/product/Compaq-Presari...

Related Compaq Presario CQ42-400 Manual Pages

Resolving Start Up and No Boot Problems Checklist - Page 1

...black screen Usually occurs if a component is installed incorrectly, or there is no power available to original condition. Resolving Start Up and No Boot Problems Checklist Print and use recovery disk to recover the computer to the notebook... does not start Count number of a disk drive and fan turning. HP Notebook PCs - Reconnect the AC power adapter (do hard reset If memory or hard ...

Resolving Start Up and No Boot Problems Checklist - Page 2

...Boot to Windows Advanced boot options (f8) and: o Select Disable automatic restart on a black screen during startup or boot Search www.microsoft.com for terms in error message Search www.hp.com...is heard, but display is black." Symptom: Computer displays a blue screen or continually restarts Trying to restart the PC after an error message can usually bypass the error and the PC can run in Safe mode...

Notebook Essentials - Windows 7 - Page 5

Contents Chapter 1: Getting started Windows 7 1 TouchPad 1 Connecting to start up 17 The computer screen is blank 17 Software is functioning abnormally 18 Notebook Essentials iii Creating recovery discs 7 Protecting the computer 7 Protecting your computer from viruses 7 Protecting your system files 7 Protecting your computer from power surges 8 Using the ...

Notebook Essentials - Windows 7 - Page 7

...for more multimedia formats TouchPad To move the pointer, slide your computer. for additional information. Notebook Essentials 1 You will also find additional information. Windows 7 has several new program and feature ... this chapter completely, because it explains what to do and where to find practical information to help in Help and Support, or refer to the Notebook PC User Guide in...

Notebook Essentials - Windows 7 - Page 16

... choose between enabling or disabling Windows Firewall, choose to enable the firewall. 10 Notebook Essentials To access the Windows Connect to the Internet wizard and instructions for using ...to use an existing account, double-click an icon, and then follow the instructions on the screen. The Internet Services & Offers utility assists with such information as follows: click Start, click...

Notebook Essentials - Windows 7 - Page 18

... and use the Windows tools to set up the modem, install a network cable to the Notebook PC User Guide in a safe place. Record this section carefully before you set up your wireless ...on securing your wireless computer. This ensures that the computer can access the data on -screen instructions. Your ISP gives you to help you install the wireless router using the network ...

Notebook Essentials - Windows 7 - Page 20

... or on the computer is installed. When the installation wizard opens, follow the on-screen instructions. ✎ Restart the computer if you are prompted to do so. ✎... Follow the on-screen instructions. ■ Software on the computer Most software, including the operating system, is displayed. 2. Important updates to Help and Support. 14 Notebook Essentials Click Start, ...

Notebook Essentials - Windows 7 - Page 21

...lower-right corner of unsaved information. ■ Press ctrl+alt+delete. Chapter 3: What's next? Notebook Essentials 15 Click Start, and then click Shut Down. Turning off the computer Whenever possible, turn... off the computer by using the standard shutdown procedure: 1. Then, in the loss of the screen, click the Shut Down button. ■ Press and hold the power button for at least ...

Notebook Essentials - Windows 7 - Page 23

...press the power button, the following suggestions may not be displayed on the computer screen or the external display, Notebook Essentials 17 To exit Sleep or Hibernation, briefly press the power button. ■... about the computer through Help and Support. The computer screen is blank If the screen is blank but is not in this computer. ■ If the computer is running...

Notebook Essentials - Windows 7 - Page 24

... simultaneous display on all vents free from viruses" section in the lower-right corner of the screen, click the Shut down button, and then clicking Restart. The computer is on but is... optional printer, or a soft surface, such as pillows or rugs or clothing, during operation. 18 Notebook Essentials Do not allow the computer to cool to block airflow. If you are using the computer. ...

Notebook Essentials - Windows 7 - Page 25

...and Internet, click Network and Sharing Center, click Troubleshoot problems, and then follow the on-screen instructions. ■ Be sure that the wireless light on your computer is properly connected to ...operating system. ■ Be sure that the wireless router or access point is on (white). Notebook Essentials 19 If the wireless light is amber, press the wireless action key (f12) to turn...

Notebook Essentials - Windows 7 - Page 27

...guidelines before inserting it in a safe place. Follow the on-screen instructions. Note the following tasks for the first time. ✎... state if you experience serious system failure or instability. Notebook Essentials 21 DVDs have finished creating the recovery discs. ...; The computer must be connected to AC power during this process. ■ Only one set of recovery discs can exit ...

Notebook Essentials - Windows 7 - Page 28

...processing document: a. Display the screen. To copy the entire screen, press fn+prt sc. Open a word-processing document, click Edit, and then click Paste. To copy the screen...information periodically. ■ Before the computer is as complete as your most current backup. Back up your system..., or menu bar by taking a screen shot of system instability or failure. As you add new software...

Notebook Essentials - Windows 7 - Page 29

..., running utilities, or changing Windows settings. Follow the on -screen instructions to set up your system, you to save and name...Recovering to your hard drive at a specific point in time. Notebook Essentials 23 Create a system restore point 1. You may take over...to AC power before you start the backup process. ✎ The backup process may be prompted for more information. When to...

Notebook Essentials - Windows 7 - Page 30

... restore the system if you may not have not already tried these steps: 1. If you create or from the recovery discs: 1. Follow the on -screen instructions. 24 Notebook Essentials Back up . Click the System Protection tab. 4. Click Start, click Control Panel, click System and Security, and then click System. 2. HP recommends that...

Notebook Essentials - Windows 7 - Page 31

or - To restore the system from either of the screen. Follow the on-screen instructions. This restores the computer to recover your computer includes...Recovery Manager in the Recovery Manager window. 3. Press f11 while the "Press for recovery" message is displayed on the screen. ✎ It may not have a partition. Click System Recovery in either the Start button or f11. You ...

Notebook Essentials - Windows 7 - Page 35

... damage to internal components, do not use premoistened antistatic wipes or an antistatic screen cleaner. Notebook Essentials 27 A vacuum cleaner can be used to blow air around on the...Take along a backup of compressed air with a soft, damp, lint-free cloth. If the screen requires additional cleaning, use a vacuum cleaner attachment to clean the keyboard. Traveling and shipping For best...

Notebook PC User Guide - Windows 7 - Page 2

... are U.S. The information contained herein is a trademark of Microsoft Corporation. Nothing herein should be liable for HP products and services are set forth in the Notebook PC User Guide, go to change without notice. Microsoft and Windows are common to most models. The only warranties for technical or editorial errors or omissions...

Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Maintenance and Service Guide - Page 1

Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC Maintenance and Service Guide SUMMARY This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides comprehensive information on identifying computer features, components, and spare parts; and performing computer disassembly procedures. troubleshooting computer problems;

Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Maintenance and Service Guide - Page 3

MSG revision history Revision A Publication date March 2010 B October 2010 C December 2010 Description Edited this guide to include HP G42 Notebook PC and Compaq CQ42 Notebook PC information only. ● Added newly supported hard drives to spare parts listings in the following locations: Computer major components on page 24, Mass storage devices ...