I have XP SP 3 OS, MS Office 2007 Pro. Dell Latitude 830, HD configured to NTFS. I have had Avast Free on this machine for 4 years- worked great. Also have Malwarebytes Pro for same amount of time. All has been well until last week when Avast performed a program update to a new version that required reboot. When I went to use MS Word for the first time since Avast update, suddenly I started recieveing denials to save file due to permission errors. Tried first to repair MS Office - no help. Shortly after started recieving errors on any write file changes to hard drive. Removed Avast and Malwarebytes, ran complete CHDSK and autofix. MS Word again allowed file saving and hard drive writting was fine. Reinstalled Malwarebytes,, everything continued to work fine. Then I reinstalled Avast. After reboot, MS Word stopped saving files due to permission errors. Removed Avast again, everything back to normal after reboot. 24 hours later, again reinstalled Avast, rebooted, same MS Word file save problem. Once again uninstalled Avast, rebooted, MS Word is working fine.
So what am I missing here? What settings do I need to fix to allow Avast and MS Word 2007 to work together?