So, cheap lil Windows-based “email and internet cruiser” notebook. NOT specced like my desktop, but OK for casual stuff. Almost a disposable computer. Almost. Lil hybrid hard drive went flaky. Still sorta worked most of the time, but not really. So. repaired the system, pulled the drive, installed it in an external case. New drive (NOT a hybrid, this time): same deal: external case. Plugged both into desktop and used Macrium Reflect (recommended for Windows users who like good, inexpensive software) to clone the freshly-repaired drive to the new drive.
Installed new drive in lil “almost disposable” notebook, and. . . all is well.
Nice, particularly the software recommendation.