I just recently found out the importance of backing up the keystore file in Android Studio. I have two apps published using this computer. Both times I simply used "Generate APK" in Android Studio Build drop down. I would really appreciate some instructions on where exactly can I find the keystore file that Android Studio used to sign those apks with and what else do I need to do to be able to publish updates to my apps from PC's other than this one. Thank you.
If you used the apk after clicking "Build Apk", its a debug build apk from the output folder. Or if you used "Generate Signed Apk" you must have used a key as there is an option to create one.