Ok so after uninstalled Opera, I renamed or deleted all the essential folders of Opera. Then I reinstalled it and it works as good as before. Thank you Lando242 !

But I maintain my first opinion. No user should have to do that because most of the user would not be able to. It means the update process must have not been tested adequately.

Thanks anyway for your help

Thank you Lando242. I will try it this way and let you know. By profile folder, which one do you mean ? The one in AppData/Local/Opera ?

Thank you.

Hello lando242,

Thank you for taking time to help me.

I tried an uninstall / reinstall. It did not solve the issues.

Dear all,

It is with great disapointment that I am joining and writing for the first time on this forum. I've been using opera for 10 years and the latest versions are so far the most annoying and unstable I've ever seen, to be fair I am quite amazed how such thing could have been released into production.

Before detailing my issues, here is my config:
Version: 29.0.1795.60 - Opera is up to date
Update stream: Stable
System: Windows 8.1 64-bit (WoW64)

Ok so since the last 2 versions, here are the main issues I had:

1- When you close the browser, it does not end the process behind it. I will hear the fan of my computer going crazy and then I will find in the Task Manager of Windows that not only Opera is still running, but that it is the software that is using the most CPU and RAM in my system. I have to End the Process manually. It does not happen all the time, but saying 2 out of 3 times is a fair guess.

2- When you are browsing the web, at some point and with no apparent reason, pages will not load anymore (until you kill the process of the Opera in the Task Manager as well, otherwise your cooling fan goes crazy). The pages will remain blank, while the title will appear in the tab and the dynamic circle will continue to move... indefinitely. I have to copy/paste the link into Chrome so he can open my webpage without any issue in less than a second... sorry but this is the truth.

I would like to add there is no apparent similarities between the pages that will make to start Opera going crazy. It happens on news website, IT website, forums, video websites, twitter, fb ...

At this point, I am not using Opera anymore on most of my web pages because of these issues. Still this is my default browser... for now.

Thank you for your help. If anything else is needed to help debugging it, let me know, I would like to get back my old pal Opera.