Unfortunately, no luck. Armory still crashes at the ArmoryDB.exe part. These are the last records in dbLog.txt:
-ERROR - 1480209973: (..\lmdb_wrapper.cpp:1435) Headers DB has no block at height: 0
-ERROR - 1480209973: (..\lmdb_wrapper.cpp:1415) No headers at height 0
Before the command prompt window crashed I also saw error about missing key pairs as before.
These types of errors have 4 different causes:
1) You are running a same DB folder against different blockchain folders.
2) You are running different versions of the code against the same DB folder. You should get an error output in the console and GUI in this case.
3) You have a bad/corrupted copy of the blockchain.
4) Your machine is unstable.
The PC is really stable
There is no knowing that without passing an hour worth of memtest and prime95 without errors. If you can actually pass these tests, then consider 3).
Perhaps something is left from the old version installation somewhere still?
The DB code does not use shared libraries, it's all in the one binary. The only possible "left over issue" is using a DB dataset built with a previous version (i.e. 0.94 data vs 0.95 binary).