Compressing Files and Folders
Windows XP is especially effective at compressing files and folders to reduce the space they occupy on your hard drive—which is ironic, considering the fact that hard drives these days have enough capacity to stretch to Bill Gates’s house and back three times.
Even so, compressing files and folders can occasionally be useful, especially when hard drive space is running short, or when you want to email files to someone without dooming them to an all-night modem-watching session. Maybe that’s why Microsoft has endowed Windows XP with two different schemes for compressing files and folders: NTFS compression and zipped folders.
NTFS Compression
If Windows XP was installed on your PC when you bought it, or if you upgraded your PC from Windows 2000, or if you erased your hard drive before installing Windows XP, then your hard drive is probably formatted using a software scheme called NTFS (short for NT file system; see page 532 for details).
In general, you can live a long and happy life without knowing anything about NTFS. Now and then, however, you’ll read about one feature or another that is available only if your hard drive was prepared using this system—and this is one of those cases.
Tip
To find out whether or not your hard drive uses NTFS formatting, choose Start→My Computer. Right-click the your hard drive icon; choose Properties from the shortcut menu. In the resulting dialog box, you’ll see either “File system: NTFS" or “File system: FAT 32.” (If it ...
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