How to Run Computer Diagnostics
Computer diagnostics can be hardware tools but in most cases the term refers to software that checks your computer's hardware and sometimes your operating system files to detect and repair any problems. Diagnostics tools are easy to use and should be run on a regular basis, and more often if you have problems.
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Instructions
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Find the tools you will need to diagnose your system. Windows has some built-in diagnostic tools, like scandisk and defrag. These programs are under the Program menu, under Accessories and then System Tools. Other diagnostic tools may be located on a disk that came with your computer system. More tools can be found on computer software websites.
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Restart the computer. Some diagnostic software can be run from within Windows and other software must be booted from a CD. Let the computer reboot if you are going to run the tool from within Windows. If you cannot use the software in Windows, insert the CD with the utilities and restart the computer.
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Go through the options and select the tool you wish to use. You may be asked questions, such as what to do when a problem is found. You will have options, like stop or repair. In most cases the tools will then run and only need input if a problem is found and you selected the option to notify you of any problems.
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Tips & Warnings
Under Control Panel in System there is a Device Manager application. Clicking on the application will show all of the hardware, if a device is not working it will have a yellow or red mark.
