Go to Opera Menu > About and it will tell you where your profile folder is located. Since your destination system is Windows 8.1 you can just copy the whole folder over and replace. Be forewarned; if you replace the folder it will erase anything you have in your profile on the destination machine. This includes bookmarks, speed dials, passwords and the like.
Do more on the web, with a fast and secure browser!
Download Opera browser with:
- built-in ad blocker
- battery saver
- free VPN