Try the system restore method first and see if it works. If not, go to :My Computer>C:/>Windows/System32/IWinGamesHookIE.dll and delete it.

Alternatively go to: Start>Run> and type in regedt32 and click OK. Go to Edit>Find and search for the
CLSID {8CA5ED52-F3FB-4414-A105-2E3491156990} right-click on it and delete it.

If either of these won't delete, then reboot your computer into safe mode (press F8 during boot time) and then try it again.

Re-scan your PC when you've finished.

Regards

Martin