I found this fix in your forum, and tried it, but it’s not working.  I’d like to uninstall Webroot and reinstall it, like the post says, but I can’t … I can’t find it in Control Panel » Programs & Features to uninstall it - it’s missing from there! 

I have found a issue with re-installing on a machine with our WRData directory present which causes this issue. I have made development aware and they are investigating. There are ways to fix it in the meantime though.

Fist I have developed a program that will attempt to repair this. Please download and run the following:

http://download.webroot.com/WRShellFix.exe

If after running this it says its replaced it, try and see if the context menu options show (a reboot should NOT be required). If it says it has disabled the context menu run the program again to try to replace it. If this still fails then it is definitely the WRData directory getting in the way. You will need to do the following:

1. Uninstall Webroot
2. Reboot the machine
3. Navigate to %programdata% and check to see if WRData has been deleted, if its still there please delete it.
4. Re-install Webroot

How can I fix the right click issue?  Thanks.