When I try to power to the top of our Dell computer, we get a black screen and the message "boot device available. Press button to try again. »

Pressing enter does nothing, then it usually starts by pressing "ctrl-alt-delete."  The computer runs VERY slowly.  We have Windows XP and also just downloaded Safe Eyes software McAfee, but it was slow & have start questions for a while.  My son also downloads a lot of PS3 games, etc.  Who would have something to do with it so slow?  Is there something we can do to clean it ourselves instead of redoing it to Best Buy and pay $100?

Hello

Start are what problems you referring?

Method 1: May be that the hard drive is not detected. Boot to the Bios Setup and make sure that the first boot device is defined as hard drive and also make sure that save you the settings and check what is happening.

If your computer is not configured to boot from a DVD, see the documentation provided with your computer. You may need to change your computer's BIOS settings. For more information, see BIOS: frequently asked questions. For assistance, contact the manufacturer of your computer.

Warning of the BIOS:

BIOS change / oxide of additional metal (CMOS) semiconductor parameters incorrectly can causeserious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the configuration of the BIOS/CMOS settings can be solved. Changes to settings are at your own risk.

Method 2: If you are able to boot to the desktop then try to perform the clean boot on the computer to resolve the performance issue.

From your computer by using a minimal set of drivers and startup programs so that you can determine if a background program is interfering with your game or program. This type of boot is known as a "clean boot".

Reference:

How to configure Windows XP to start in a "clean boot" State

http://support.Microsoft.com/kb/310353

When you are finished troubleshooting, follow these steps to reset the computer to start as usual:

1. click on Startand then click run.

2. type msconfigand click OK.

The System Configuration Utility dialog box appears.

3. click on the general tab, click Normal startup - load all services and device drivers and then click OK.

4. When prompted, click on restart to restart the computer.

The following articles could be useful.

Slow PC? Optimize your computer for peak performance

http://www.Microsoft.com/athome/Setup/optimize.aspx

How to make a computer faster: 6 ways to speed up your PC

http://www.Microsoft.com/atwork/maintenance/speed.aspx

Tags: Windows

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