If your PC is sluggish, the screen freezes more, the hard disk makes strange noises and/or you reboot frequently due to error messages then computer diagnostics are essential to sort out the trouble.

A complicated machine is bound to have trouble in delivering every time, smoothly. Apart from external factors sometimes, internal factors also might result in the malfunctioning or crashing of a computer. To determine the nature of the problem there are computer diagnostic tools. Though the word diagnosis means identifying and analyzing the problem, computer diagnostic tools go all the way to set things right after preliminary diagnosis. A comprehensive computer diagnostic tool would diagnose dead PCs, motherboard, power supply, memory, hard drive and the central processing unit. Data recovery diagnosis is a part of this process too.

Computer diagnostic tools flood the markets in both software and hardware form. A lot of computer diagnostic software is available for free and can be used by an end user without any technical help. The assistance of technicians may be sought to set problems like stuck keys on the keyboard, mouse related problems, rolling pictures, memory loss and loss of data with the help of computer diagnostic software.

Most of the computer diagnostic programs are easy to run and come with useful instructions that can be performed by PC users themselves, unless there is a serious problem concerning the hard disk or the CPU. Computer diagnostic programs should be run periodically by end users even when there is no obvious problem to check for troubles that might be lurking in the system. It is advisable to leave some space in the drives to accommodate the computer diagnostic software. Computer diagnostic programs would run a set of tests either individually or simultaneously to identify the problem and prepare a report. This report may be saved for future reference. After this, the computer diagnostic program would proceed to trouble shoot.

Computer diagnostic software can retrieve lost data in minutes. However, complete testing of a PC by using a computer diagnostic program may take as long as 100 hrs. The costs of computer diagnostic software is higher than the cost of computer data recovery software, as the later does a myriad of functions that includes identifying, analyzing and trouble shooting that also includes data recovery.

Windows mode computer diagnostic software is compatible with 2000, 2000 Pro, XP and 2003. DOS mode computer diagnostic programs are compatible with IBM XT, PC, AT and Pentium, Pentium Pro, Pentium I, II, III, and Pentium IV to name a few.

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Natalie writes about computer, Internet, web design and web hosting.