This whole exercise was precipitated by trying to NOT re-download the entire chain, but alas, it appears you are correct and while I do have ample space, it appears that the folder is only 6 gigs in size...
ok then...see you all in a few days after I get that sorted
I did the same exact mistake...pruned it and downloaded ~85% of the blockchain and then read on here that pruned mode wont work, so had to redownload the whole thing again for 12 hours. Even after that it was stuck on a few steps, like "Scanning Transaction history" and "Parsing Tx Hashes". So, if you run into further troubles, here's a list of things you should ensure (just so that you dont have to troubleshoot for hours like I did lol):
1. Check off the auto bitcoind in armory and run Bitcoin Core yourself (and just make sure you're on latest version, I think the latest version is 0.96.5 on Github)
2. Make sure you dont run Chrome in the background with a lot of stuff open, that tends to eat up a huge chunk of RAM and Armory used up ~14GB/16GB for me.
3. Building database seems to take quite a lot of time, even on my Ryzen 7 4800H 8c/16t CPU it took ~8 mins with an all core turbo of 4.17 Ghz for the whole almost (though I was running some other tasks in the background)
4. If nothing seems to work even after making sure of these, rebuild the database. That seemed to fix everything for me.