Lightroom 6 keeps crashing

Lightroom version: 6.0 [1014445]  (This is a standalone version, not a subscription version)

Windows 10 Pro 64-bit (10.0, Build 19042)

GeForce GTX 950/PCIe/SSE2 (driver 460.89 12/15)

It started crashing unpredictably a month or so back. The behavior I'm calling "crash" is that the application simply closes down with no warning--no error message, no failure indicator, just simply gone.

The crashes frequently but not always occur when I am synchronizing a folder (scanning for new photos and importing them) but I don't think that specific operation actually triggers it. That's just the operation I do most often on startup. I saw it crash just now when all I did was launch and ask to view Preferences. Yesteraday, on the other hand, I was able to work for 5 or 10 minutes before a crash.

First I checked to see if I have the most current updates for my version of Lightroom (which I know is old.) Help | Updates brings up the Adobe manager which confirms I have the most current version. After looking at forum posts I checked whether I have the latest driver for my video card. I do, but I did a clean re-install just in case. Crashes continued. I then disabled "graphics processor acceleration." The crashes became less frequent but did not entirely stop. I then launched with Ctrl-Alt and told Lightroom to reset all preferences. That also has not fixed the problem.

I think my next move is to uninstall Lightroom and reinstall it, but before doing that I thought I'd check here for anything else I might be missing.

{Moved from Lightroom Cloud to Lightroom Classic Forum by Moderator}