How to copy one external hard drive to another directly? If I can encrypt my backup image I will feel even better (don’t call me greedy, you can’t be more careful with your data as well). What’s more, a regular backup on external hard drive would be better for me because I wouldn’t expect myself to remember to backup manually every time.Īlso I prefer incremental backup to backup only changed data to save my disk space. While backing up external hard drive to another external hard drive seems necessary when one external hard drive has used as storage device.įor example, I store my photos on the newly bought 1 TB external hard drive, and I would like to backup this new drive to another external drive in case hard drive fails or computer meltdown one day. Sometimes we backup our important data or backup PC to external hard drive for better protection. Need to backup one external hard drive to another in Windows