In Windows XP, you can save your data on your hard drive with less space than the normal size. It is not necessary to install third party software to compress and decompress your data, you can use Windows built-in data compression or decompression function to manage the disk space problem. I think many users are on the security of your file and folder structure also concerned, another advantage of this feature you can protect your files and compressed folders with a password. Follow the steps to...