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One of the reasons that the Macintosh operating system is so easy to use, is the fact that all file management is performed in the main interface. This means that we may store files, folders, and applications anywhere we want on our systems. We may also move these items, at any time, with a simple drag of the icon. Believe it or not, this is not an option on some other operating systems. We also have the ability to select any document, and by opening that document, automatically open the program that created that document. Imagine if you could move anything in your house, anywhere, at any time, and immediately remember exactly where it is, and push a button to retrieve it, when you need it. If you're like most people, you can easily see that this ability is pretty amazing. In order to perform this amazing feat of recollection, the Macintosh maintains a database of every item on your system. In fact every volume accessed by your computer (a volume is a storage place, such as your hard drive, a floppy disk, a zip disk, a syquest disk, anything that holds and stores information) has it's very own database for reference. This database, called the desktop file, is invisible, but it does exist on every volume. The desktop file tracks every addition, deletion, or movement of everything on your volume. Most of it's function is performed at Shut Down, during that short pause between selecting "Shut Down" from the "Special Menu" (or the "Apple Menu", in some cases), and when the machine actually shuts down. With this information in mind, one can see how a sytem crash, or lockup may compromise the health of the desktop file. The other important fact about the desktop file is that it is not self-purging. In other words, it doesn't know how to clean itself up. Therefore, when you move a file, the database doesn't actually delete it's old reference to that file, but it puts a new reference in the new place. So, when it looks for that file, it first goes to it's original location, and then it follows all of it's references until it finds what it's been looking for. Eventually, this can become quite time consuming, and your machine's performance slows down. It also makes the desktop file vulnerable to corruption, which may lead to your computer's inability to find any of it's own information. It is, therefore, up to us to Rebuild the Desktop regularly. When To properly maintain your system, the average user should rebuild the desktop monthly. If your icons begin to look weird, or lose their custom images, you must rebuild. It should also be performed after a major installation (any program which installs anything to your system folder), or after any major crashes (users of online software, beware!). These precautions will not guarantee that you'll avoid system repairs and technical support, but you will be cutting your chances. You'll probably also find that your system seems a bit more responsive after your rebuild, if your desktop database file was becoming corrupted. How To Contrary to popular belief, a Desktop Rebuild does not consist of selecting "Clean Up" from the "View" menu. That merely straightens out the icons on your desktop. It also does not mean Optimizing the Hard Drive, one of the options available with utilities like Norton Utilities' Speed Disk (this, by the way is a very common practice of PC users, however it can be very destructive, and is not recommended). When we Rebuild the Desktop, we are adjusting information in an invisible file. There are a couple of ways
to perform this function, the "Easy Way"
and the "Good Way". The "Easy Way" is Apple's own method. It's simple to perform, and probably better than nothing, but it does an incomplete job, and has the potential to corrupt files in your system folder. For those of you who are squeamish about performing tasks with several steps, this is the method for you, but be forewarned, this method may delay a technical support visit, but you'll see me sooner than if you use the other method. To perform this method, you
simply hold down the option+command (apple/squiggle) keys all the way
through the startup of your computer. If you do this properly, your computer
will eventually send up a dialog box asking if you're "sure you want
to rebuild the desktop?". At this point you say, "of course,
you silly computer, why do you think I've been sitting here holding down
these keys?", and you hit "OK". Then wait until the machine
stops showing you a progress bar, and your desktop will reappear, ready
to work. The "Good Way" is the method prescribed by most technicians, as the best method of avoiding system corruption and providing a perfectly clean desktop database file. This method encompasses several steps, so those of you with a bit of a sense of adventure should use this method. As I said, it's a bit more involved, but it does provide better results than the "Easy Way". The steps are: (click the apples to view the instructions)
Create a "Desktop Rebuild Set"
- This will need only be done the first time, as setup.
Select "Desktop Rebuild Set" in the Extensions Manager
Select "Use This Set" in Extensions Manager
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