Windows XP : Cleaning up unwanted startup programs
Many freeware and commercial software programs have a habit of setting themselves up to run automatically upon Windows startup. This can contribute to the gradual decline in startup speed that most Windows XP systems (and windows PCs in general) experience. Also, having programs that you only use selectively, or not at all, load automatically is a waste of system resources that could be better used for other things.
To top it off, many internet nasties such as spyware programs, viruses and Trojan horses will install themselves into one of the automatic start locations on your system in order to make sure that they are run on startup. So the point is, take a look at what is currently running every time you load your PC, and disable what you don't need or can't identify.
To do this: The first place you should go is 'start\programs\startup' which is a directory Windows XP uses to launch application shortcuts on boot-up.
If you remove the shortcuts from this directory, the applications will not load on startup. This directory can also be a repository for various badness such as spyware and virus software, so if there are files here which are not shortcuts and you don't recognize them, you may wish to consider removing them anyways, as Windows will not place critical files in this directory.
The next location for removing unnecessary startup files is the handy MSCONFIG utility that has been resurrected from the graveyard of Windows 9x especially for XP.
Go to 'start\run' and type 'msconfig' to access the utility.
The 'startup' tab in MSCONFIG provides access to several other applications that are started at boot up and are running in the background. By examining their Filenames and directories, you should be able to get a feeling for what is necessary and what is not. Be aware than several viruses and worms have a habit of disguising themselves with authoritative sounding Windows system file names.
The other method for removing these programs is through the programs themselves, as many applications, for example MSN messenger, contain the option to remove the software from startup.