Lately, when attempting to download a book, I get the above message and not able to get the book. Then Microsoft Defender pops up 'removing maleware'. What can I do to receive the books?

[PinkWorld]

Check .exe or Virus warning after downloading a file for helpful info on this issue.

I'm getting a lot of these.

I know that they are false threats, and with Firefox I can allow the files to be downloaded anyway, which I do, then I check the files before opening with my anti-virus program (Avira) which will invariably show no threat, then continue as usual.

I hope that helps a little.