It all started when I was using Revo/Uninstall to uninstall Office 2010 from my hard drive. I'm running Windows 7 Home Premium. I have installed a licensed copy of Office 2007 (Student Edition), which was working just fine. Revo identified 2 registry entries that I believed applied to 2010 that could be deleted as part of the uninstall procedure. I told it to delete the entries and then, having second thoughts, I canceled the uninstall. I saw, however, that the icon for Office 2010 had disappeared from my list of "All Programs" (although certain related Windows 2010 icons still remain.) I attempted an "System Restore" only to find that the "System Restore" function for each of my hard drive partitions was set to "off." When I tried to turn them on, I got the following messsages: "Could not apply the settings for the following reason: "The filename, directory name, or volume label syntax is incorrect. (0x8007007B)" Followed by: "There was an unexpected error in the property page: "The filename, directory name, or volume label syntax is incorrect. (0x8007007B) "Please close the property page and try again." I read in some of these forums that third-party uninstallers may screw up the System Restore function. Apparently Revo is one of these. Moreover, when I now try to use work on my Excel and Word files in Office 2007, the OS wants to "Configure" those programs for me, including (but not mandating) that I enter my Product Key number for Office 2007. I can do this, but I'm already using my max 3-licenses. So at this point I have a System Restore function that does not work, a still-installed version of Office 2010 that I want to uninstall but can't (as it no longer shows up in the list of programs eligible to be uninstalled, presumably because of the registry deletions), and a valid copy of Office 2007 that wants to "Configure" every time I use it (does this mean it thinks I'm operating under a time-limited trial period?). My questions, then, are: 1) In what order should I try to fix these problems? 2) What do I need to do to get my System Restore fully functional again? (Many solutions on these boards involved doing something with Norton -- I've previously uninstalled Norton, so that option isn't available to me.) 3) Will restoring the 2 deleted registry entries (whatever they may have been -- I could use advice on that as well) a) bring back the OS's recognition of the still-installed Office 2010 program, so that I can uninstall it and get it completely off my hard drive; and b) re-recognize that my Office 2007 is as configured and properly registered as I need it to be? 4) Or is there some other approach entirely that I need to take? Sorry for the excessive length of this post. I'd appreciate any help you can offer.