When attempting to create a system image on an external hard drive, I get an I/O error ox8078002A.

I'm using a HP Pavilion dv7 notebook PC and a Seagate 3TB USB 3.0 external drive. OS is Windows7 64-bit. Microsoft support suggests running chkdsk /R on the Seagate drive and I'm currently doing that (takes a long time). Another post suggested trying a different USB port but that produced the same result. Any other suggestions? Thanks.
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Hi,
You mention that you tried a different USB port, did you try a USB 2.0 port? If not it may be worth trying this when Chkdsk has completed.
Regards,
DP-K
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