This seems to be a Nero Problem.
1. Go to Start -> Programs -> Nero->Tools -> Nero Scout. Nero Scout Options window will open.
2. Click Indexing -> Folders.
3. At the bottom click Clear All and click Apply.
4. At the top left corner uncheck the box ' Unable Nero Scout' .
5. Click Apply and OK.
If this does not work try to go into MSCONFIG and remove NMBgMonitor (a Nero Essentials component) from Startup.