Before you upgrade your operating system to Windows 2000, be sure to perform a COMPLETE BACKUP. Unlike the Windows 98 upgrade, Windows 2000 doesn’t give you the option of returning to your original setup if you decide for some reason you don’t like Windows 2000. Thus, you need to create this emergency exit for yourself. Use tape, CD-R discs, or some other removable storage medium and perform a complete system backup. Also, make sure you have a properly configured bootable system disk so you can boot from it and access your backup data. With a full backup on standby, Windows 2000’s hour-long installation procedure won’t seem quite so stressful.