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.

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

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