I have had to exclude several Office 365 files including the OSE file to allow a full scan to get past the 10% mark. Now it's locking up on another file that is truncated so I can't search for the file. This is running on a custom built computer with an AMD A10 processor with 8GB Ram. Windows 7 Ultimate 64-bit OS. I'm about ready to uninstall and go with a different solution.