When my ZoneAlarm suddenly wasn't able to scan for viruses, I went with a free 7-day trial for TotalAV .. lauded as "the best" on numerous sites.
But when I conducted a simple clean-up of duplicate files, etc., -- y'know, the usual stuff -- it WIPED OUT half a dozen articles that were ready to go to my publisher, that had been saved in Bitmap. It also WIPED OUT several issues of my newsletter, "Veritas," that were stored in their own file. Those were JPEG.
I now have to try to re-create about a month's work. There's no way I'll actually be able to totally reproduce this work -- and now, I'll have to do it in some haste.
The newsletters are a total loss, unless one of my readers has the four missing issues saved, somewhere.
And needless to say, I've uninstalled TotalAV. DON'T USE THIS!!!