"This is an executable file and may contain viruses or codes that will harm your computer".
The keyword is "MAY"...
NOWHERE in that does it say "This is a virus."
What you're seeing is a standard Windows warning about ANY executable file you can download.
Adobe isn't, and never has been, in the business of making malware. That said, there are literally millions of fake downloads of things like Reader, Shockwave and Flash Player.
Bottom line: If you don't trust the download... DON'T USE the download.
There are two sources to trust for Adobe freeware:
For Flash Player - Adobe Flash Player Distribution | Adobe
For Reader - Adobe - Adobe Reader Distribution
You can bookmark those links and use them ANY time you get an update notification, to know you're getting the download directly from the source.
Thank you Mike.
Betty Broughton/Broughton's Cleaning Service
P.O. Box 4433
Hoppers Crossing Vic 3029
Ph: 9749-1647 Fax: 9734-6773 ABN: 24 481 857 901.
Mob: 0421-867-174 Preferred Provider for Workcover & TAC.