I have a similar situation. I downloaded lightroom 6 cc before I bought lightroom 6. my experience with lightroom 6 has been fine until recently when each time the updates 2 and 3 are installed. My computer frequently crashes at startup and locks lightroom 6 ("memory management error", but my windows 10 memory diagnostic tells me that there is no memory problem). What is even worse and more frustrating is when I restart the computer, I am only given the option of using lightroom cc trial version when I click on the desktop icon associated with my lightroom 6.
Does anyone have the same experience?
Does adobe know of this problems? Is adobe working on a solution?
This thread has been branched to a new thread and moved to the Lightroom forum for assistance.