In a message dated 3/16/99 10:23:52 PM Pacific Standard Time, [log in to unmask] writes: << I have my Maint. Wizard (W98) set to run scan disk (thorough) and disk defrag every night. Is there some reason that this frequency is not a good idea? TIA! >> I have mine set the same way but don't always leave my computer on for the Wizard to work. On some occasions I start the Maint Wizard manually during the day, such as when I know I'll be gone for a couple of hours. IMHO the % of fragmentation has little to do with how often to defrag. After several days of normal use I always enjoy an increase in operating speed after defragging, and I wouldn't go more than a week without defragging under any circumstance. Scandisk, I run after a hang of any kind (thorough) and in conjunction with defrag at other times. Win98 spreads files all over the hard drives........... let the Wizard gather them up and place them where they belong while I sleep. Joe Drysdale Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://nospin.com/pc/pcbuild.html