There are numerous ways to lock a folder and/or files(s) in Windows. Many of which include extremely simple options that are easy to hack or software...

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There are many services included in Windows XP, some of which can be removed and speed up your computer...

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There are some really neat hacks and edits you can do to Windows XP. One of my favorites, though, is the ability to change the famous "start" button. You see it everytime you get on the computer, hopefully, and it awesome to customize it, so that you have the ability to click on what you want...

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