
I can't be sure, but it seems like this setting might leak across during installs. As you use your various installations, make sure that your preferred updates channel hasn't changed.

The android-studio-dev is the folder created from the downloaded zip file. The executables under the Android Studio folder, and another set of code under the android-studio-beta folder.


Note here that I already had two versions of Android Studio running. Extract the zip file in the same location folder your previous installation (adjacent to, not overlaying).The solution involves a side-by-side installation, which is an acceptable and supported configuration 1 Here is how you update when you are not presented with a Update and Restart button, but instead only have a Download button.
