iMac For Dummies, 11th Edition
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Following a recommended maintenance schedule for your iMac will help you avoid problems and keep your computer running smoothly. Use this iMac maintenance guide as a handy reminder.
Task Schedule
Check for updates within System Preferences Automatic setting (Software Update pane in System Preferences)
Back up with Time Machine Automatic
Defragment (using Prosoft Engineering Drive Genius 5) Once a month
Delete unnecessary user accounts As necessary (Users & Groups pane in System Preferences)
Scan for viruses (using VirusBarrier Scanner from Intego) Automatic
Check all volumes for errors (using Disk Utility) Once a week
Check for the latest drivers for your external hardware Once a month (or after adding new hardware)
Delete temporary Internet cache files and old system logs (using the Mojave Manage Storage feature) Once a week

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Mark L. Chambers has been a technical author, computer consultant, BBS sysop, programmer, and hardware technician for more than 30 years. An unabashed Mac enthusiast, he has written more than 30 computer books, most about the Mac. They include MacBook All-in-One For Dummies, 2nd Edition, and Macs For Seniors For Dummies, 3rd Edition.

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