I've been using Opera for years and have my preferences set exactly as I want them. How can I upgrade Opera 32-bit to Opera 64-bit and keep all my profile settings?
By default, Opera 64-bit installs into "C:\Program Files\Opera x64", which will NOT transfer your settings. To get Opera to automatically use a profile from the 32-bit version, you need to click "Options" in the installer and change the install path to "C:\Program Files\Opera".
Thanks to everyone in this Opera forum post for figuring this out.