I had issues lately, and when trying to re-install AndroidWorks, it would not download components. Go to NVIDIA developer page and search CodeWorks for Android, download the latest (may have to sign up) CodeWorks-1R8-windows_b181 is the version I downloaded (newer than what is in 4.19 folder) and this version installed codeworks no problem. BUT I needed to do the adb start-server … THANK YOU!!!