I am dealing with the same problem. I called Adobe technical support and spent hours to fix the problem but none worked. I tried to explain them the error might be caused by the Activation process but they just made me uninstall and install application several times.
When I start LiveCycle it gives the following error: adobe livecycle designer es has stopped working.
I start debugger to see what's going on and get the following exception: Unhandled exception at 0x773db663 in FormDesigner.exe: 0xC015000F: The activation context being deactivated is not the most recently activated one.
Does anyone know how to deactivate this product manually? Because deactivate menu is dimmed and I cannot deactivate product from the program. I believe if I can just remove activation info and activate it again this problem might disappear.