I wish to warn anyone invited to make the following upgrade to beware that in my case, within about 30 minutes of installation, the default settings led to the deletion of my BibleWorks9 executable file. Trend Micro Titanium Maximum Security 2013 informed me that the BibleWorks 9 executable was a malicious file. I do not know how I will get around this apart from re-installing the whole Bibleworks program, but for me this upgrade has been a disaster as I use BW9 on a daily basis for my work.