Dell Inspiron 3520 does not start after Windows 8.1 update

I have a DELL Inspiron 3520 that has Automatic Updates turned ON. Last night, I got a message stating Windows 8.1 will be installed in 1 hour. This morning, looks like the update has finished but my laptop is sitting at a blue scree with message "your pc ran into a problem and needs to restart".. it restarts, comes back to the same screen. Its in a loop. I tried system recovery/restore, using all function keys to bring up the Dell System Recovery screen but no matter what I do, I land up on the same blue screen. Its frustrating at this point. What should I do to get back my laptop working again