I run Opera 9.64 on Windows 7 x64 RC. It's been fine till this week, but now my menus have gone funny (e.g. blank lines in the Help dropdown, and no 'Synchronize' in the File menu).
So I decided to uninstall and reinstall. But when I say 'uninstall Opera' from Add/Remove Programs, I get: 'The feature you are trying to use is on a network resource that is unavailable' -- although the 'Use Source' box points to a folder my local C (not network) drive. (Which doesn't have 'opera installer.msi' in it.)
If I click OK, a Windows Installer dialog tells me that the path 'c:\users\mary\appdata\local\temp\_isD1B1\opera installer.msi cannot be found', and asks me to find the installation package and install opera 9.64 from there.
The same thing happens if I try to install it (even to a different drive), or repair it.
I don't have a CD for it. *I can't find the .msi anywhere on my HDs. So I can't install Opera, or uninstall it, or repair it.
I downloaded the windows installer Cleanup tool, but I don't know if it runs on Windows 7. Besides, it alarmingly says I might have to reinstall all my programs if I run it - which would take many days!
If necessary, I could delete all Opera folders on the C: drive, and remove all Opera entries from the registry. But I don't want to do edit the registry so drastically if there's another way.
Any suggestions? (I posted a version of this query in the Opera forums, but have had only one suggestion, to reinstall Opera over the existing installation, and that didn't work.)