Can't update Android Studio - no “Update and Restart” button

Question

My Android Studio (0.4.3 now) often displays a message that is ready to update, but the alert does not have an \"Update and Restart\" button:

Answer 1

I have found a temporary solution for this problem (until they release a fix for it).

1. When Android Studio opens and the update popup shows up without the button, close it with the X button.
2. Press Ctrl+Shift+A to open action search dialog, enter Event Log and open it.
3. There will be a message telling that Android Studio is ready to update and the word update is a link that will open a window with an Update and restart button.