I bought today an WD Elements. I just made a quick test on it, everything is fine, no errors.
I did also on my primary disk (The one where i have installed Windows) and when i did the quick test, i have got this error.
Unit Serial Number:
Test Error Code:
06-Quick Test on drive 1 did not complete! Status code =
07 (Failed read test element), Failure Checkpoint = 97 (Unknown Test) SMART
self-test did not complete on drive 1!
16:22:03, November 12, 2015