Tech Tip: Backing Up Your Backup Drive

Q. I keep my photos, videos and other multimedia files stored on an external USB drive to save space on my computer’s main hard drive, and I also back up vital folders there. But how do I back up the external drive in case it goes south?

A. You can create multiple backups of your important data in several ways, including on multiple external drives, to a home network server or to an online cloud-storage locker. In these days of ransomware and other data-corrupting attacks, having a backup drive that is not always connected to your computer (and therefore not vulnerable to online attack or spreading malware) can be another way to protect your files.

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CrashPlan is among the online services that can back up external drives for a computer.

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