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#11
Well, this was interesting. I installed Minitool and it did, in fact, let me assign a drive letter to the subject recovery partition.
What's interesting is that when I inspected the drive in File Explorer it did not show the 'Recovery' folder; it only showed the 'RecoveryImage' folder where the Lenovo crap is. I'm guessing that had to do with the partition type or something. So, I took a deep breath and bravely deleted the largest files that I did not want. I did a restart and all was well.
Next, I used Minitool to shrink the partition down to 640mb with 122mb free. This leaves a little leeway and MS can adjust it more in future W10 updates if needed. Did another restart and all still good.
Finally, I used Minitool to change the drive letter back to 'None' and so far all is well.
I'm thinking that since I use Macrium for imaging it is likely that I would never need that recovery partition anyway, but MS will continue to maintain it if future updates necessitate, and it is there if I ever do need it. Hopefully my actions did not clobber it for future use, but I think it s/b OK.
Thanks a lot for your help. This got me exactly where I was hoping to be!