Tom,
This post now shows in my workspace as published, but it does not appear in the "PGP WDE for Windows" forum. Why not? Also, I still did not get an e-mail about your second reply, so I have to keep checking back here to see if you've replied. Why doesn't subscription to this post work?.
I followed the procedure in the first link in your last response and entered the serial number from my latest renewal, and it offered me V 10.2. I am now working with your renewal folks to get my account fixed so I can buy the renewal that I was not notified of last October. I presume that will get me a serial number with which that procedure will offer me V 10.3.
When I followed that procedure, I was offered four things: 10.2.x [MPy]. I understand that "MP" stands for "Maintenance Pack," but it appears that the things with this additional label are not just maintenance packs, but the full software, so I presume I just need to download the one item with the most recent posting date, which also has the highest values of x and y.
Finally, you suggested I try to decrypt with the recovery disk and you linked to a page with links for several versions of recovery disk images. As I said at the top of this thread, I already tried to boot from the 10.0 recovery disk, which hung the system. Are you suggesting I try booting with a later version recovery disk? That page you linked to and other documentation has prominent warnings about fatal damage from using a different version recovery disk. But I suppose that damage is only to data and not to the physical drive, so maybe I have nothing to lose by trying a later version if the current version won't work. Is that what you're saying?