Is your XP-running computer too slow to be of much use or frustrating? It may not be your computer's fault. Windows XP, when used correctly, could be fast, efficient, and fun to use. Here's how to speed up your XP system.

To do so, click on the start menu, go to Run, type cmd. type "CONVERT C: /FS:NTFS" (without quotes). Follow the instructions and your drive will be converted to NTFS. Bear in mind that NTFS drives can only be accessed by Windows 2000/NT/XP and Vista. Older versions of Windows are only compatible with FAT, FAT16 and FAT32.

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Remove Malware from your system.. Spyware comes bundled with a lot of free software found on the Internet. It can slow your machine down to a crawl. Download and install Spybot Search & Destroy[1], start your computer in Safe Mode and give your machine a full scan for spyware. For more free security programs, try checking out this article on Wikipedia for more programs.

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Clean registry database. Cleaning of registry can always speed up windows xp significantly as there are thousands of calls to registry file by windows and other programs in just one sec means file needs to be compact. You can get a good one from Intel Software Partners
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Disable the Indexing Service. The indexing service scans your hard drive and indexes files to help speed up searching. It runs in the background using up memory and processor time, and is generally thought to be unnecessary by most nerds and/or geeks. It can also wake you up if your hard disk is noisy and you leave your machine on at night. To disable the Indexing Service, open