Here's something that might help someone, like me who got tired of having my photos (or documents or pdf files or ?) sitting under the Favorites and in the Recently Changed folder for anyone to view. I just upgraded to Windows 7 Home Premium x64 and really like it more than I did Vista x64. But getting use to some of the changes and seeing new things got me thinking about either hiding some things or changing them. This might have been covered already so if it has then Brink you can move/delete it or whatever.
To keep certain things from appearing in the Recently Changed folder in Windown 7 Home Premium when you access a photo, document, or whatever try this : Go to Control Panel - open Indexing Options. Highlight Users and at the bottom click Modify. In the window that opens up, the top box "Change Selected Location" click the > next to Local Disk "C". Next click the > next to Users. Then click the > next to "username". There will be your My Documents, My Pictures, My Music, etc folders with check marks in the boxes. Just un-check the box or click the > next to the folder that contains what you don't want to see all the time in the Recently Changed folder and un-check that box. For me it was in My Pictures as I have several sub-folders with photos from different cameras that each time I looked at a photo it would re-appear in the Recently Changed folder. You can't delete anything out of that folder as it is linked to the original file by windows indexing. So by using this indexing option I now don't have to worry about seeing all of these photos appear in the Recently Changed folder. Some things I don't mind coming up like a training log.txt or Changed Computer Settings.doc but other things you know already where they are and don't need the clutter. I noticed in some posts people would try and delete the contents of the Recently Changed folder thus loosing those photos, documents or whatever after they went to empty the trash.
Anyway that's the solution I came up with. Hope this helps someone that has the same issue as I did.