If your system contains windows xp try these...

1. It boasts how long it can stay up. Go to the Command Prompt in the Accessories menu from the All Programs start button option, and then type ’systeminfo’. The computer will produce a lot of useful info, including the uptime. If you want to keep these, type ’systeminfo > info.txt’. This creates a file called info.txt you can look at later with Notepad. (Professional Edition only).




2. XP hides some system software you might want to remove, such as Windows Messenger, but you can make it show everything. Using Notepad or Edit, edit the text file /windows/inf/sysoc.inf, search for the word ‘hide’ and remove it. You can then go to the Add or Remove Programs in the Control Panel, select Add/Remove Windows Components and there will be the software and you can now uninstall it.



3. You can at last get rid of tasks on the computer from the command line by using ‘taskkill /pid’ and the task number, or just ‘tskill’ and the process number. Find that out by typing ‘tasklist’, which will also tell you a lot about what’s going on in your system.


4. The Start Menu can be leisurely when it decides to appear, but you can speed things along by changing the registry entry HKEY_CURRENT_USER/Control Panel/Desktop/MenuShowDelay from the default 400 to something a little snappier. Like 0.


5. Windows Media Player will display the cover art for albums as it plays the tracks — if it found the picture on the Internet when you copied the tracks from the CD. If it didn’t, or if you have lots of pre-WMP music files, you can put your own copy of the cover art in the same directory as the tracks. Just call it folder.jpg and Windows Media Player will pick it up and display it.



6.The Indexing Service in Windows XP Indexes your files presumably to shorten the time needed to search your hard drive if you are looking for a specific file or part of a phrase inside a file.
By default, this service is set to manual (so it won't start), but when you do a search on your computer, there's that little question asking you if you want to make future searches faster.... so you could have enabled it (it will tell you that you are going to enable the Indexing service when you choose this). Anyway, having run it for a while, it was one of the first things I decided switched off, and I haven't noticed any delay when I do my searches (and I presume that with my C:\ drive holding in excess of 106,000 files in over 2,700 folders I'm not a typical user!), but I did notice the improvement of having more CPU cycles available at all times. Don't you just hate it when you're playing a game of Hearts and your system decides that you are doing "nothing", so it can start indexing your files, thereby slowing down your game to a crawl.
To disable the Indexing service, open Computer Management from Administrative Tools (on the Start menu if you enabled this, or from the Control Panel), selectServices and Applications, double click Services, and find the Indexing Service. Double click to bring up the Properties window, and click Stop to let Windows stop the service. Then from the Status type drop down box select Disabled.