I ran the update on my McAfee software on Friday and then went to Qbooks 2017 and was able to successfully open the data file. I was promised by McAfee and Qbooks/Intuit to be notified when the fix was complete... that did NOT occur. However, I believe the fix has been successfully made by whoever (I think it was a McAfee issue). I don't disagree with anyone communicating on this topic that there are numerous options for antivirus software. Its just tough mid-stream to be removing one and replacing it with another. I may do that at year end during my renewal. This should not occur with two entities like Intuit and McAfee, but it did. The process was very frustrating and took way to long for them to resolve!!