While it is often difficult to determine the precise cause of your sluggish PC, there are several likely culprits. Over time, the files and folders on your hard disk drive(s) may become fragmented. You should periodically ‘defragment’ your hard disk drives(s) by using a utility program for that purpose. For example, if you are using Windows, the Disk Defragmenter can be found in Accessories, System Tools.

 However, there are many other commercial and open-source utilities with additional features that will keep your file system up to speed. The Windows registry can become fragmented, thereby slowing down your computer. Again, a good utility program can be purchased or downloaded (either as freeware or shareware) to take care of this problem.

Did you know that your system’s memory can become fragmented? There are several specialized programs that will ‘defrag’ your RAM. If your computer seems sluggish, you probably have accumulated a great number of temporary files that can be deleted, in the case of Windows, by using the Disk Cleanup utility in Accessories, System Tools.

It’s also important to empty the Windows Recycle Bin periodically. Viruses and other malware, including rootkits, can bring your PC to its knees (or to a screeching halt). It is very important that you protect your system with a good anti-virus program as well as with firewall software.

Ironically, anti-virus and firewall software may slow down your system somewhat, because of their features for updating virus signatures and blocking malicious Internet traffic. Yet these and other tools for optimizing your PC will prove to be invaluable.