Memory upgrade seems to help with my AVD issue. However, I am not completely sure why. The system has now 16 GB instead of 8 GB, but task manager shows a little less than 8GB used. Probably some parts used by win 10 are not properly listed respectively my interpretation is not completely correct. Anyway, the system has been simply 8GB memory added. There were no other changes required and suddenly the AVD start succeeded. This is despite the fact that I still have an error message The command "C:\Users\...\AppData\Local\Android\sdk\platform-tools\adb.exe" terminated with exit code 1. This is an AVD for ARM as I require for my Google phone. It consumes a 1.2 GB and has a reserved 2 GB according to task manager.