Can't update Android Studio - only download

Question

I have not updated my Android Studio for a while and am presented with this dialog box when trying to update:

Answer 1

If anybody uses Ubuntu and has the same problem....
For me, AS always crashed after the download of a patch was complete. Then I wanted to figure out what's going on by launching AS from the console to see the output (I have AS as icon in Dash menu and usually launch it from there). After launching AS from console I clicked the update popup again, it downloaded but suddenly, it did not crash anymore. Suddenly it asked me if I want to exit a running background process, I clicked "exit", AS installed the patch and rebooted (what is usually not working either).