## Windows 10 ---
## Delete this file
C:UsersYourUserNameAppDataRoamingGoogleAndroidStudioPreview4.Xdisabled_plugins.txt
## Linux
rm -r ~/.config/Google/AndroidStudio4.1
## Or Remove
rm ~/.config/Google/AndroidStudio4.1/disabled_plugins.txt
C:UsersYourUserNameAppDataRoamingGoogleAndroidStudioPreview4.Xdisabled_plugins.txt