Audacity 2.4.2 download infected with Trojan virus [SOLVED]

ok. Few interesting issues are happening here and now I actually need your help please.

  1. I did NOT click on the blue download button in the ad. Looking at the screenshot above - I clicked on the link underneath Audacity Windows.zip.. Once finally downloaded and installed (after being disinfected by my Bitdefender) I opened it to check - it looked and worked ok. I noticed a larger than previously counter at the bottom. I closed the program.

  2. I’m using Windows 8.1/64. When just now prompted by the Forum message to include the version of Audacity I’m using I clicked About AUdacity - I saw that the version I have is 2.3.0. (???) Checked in Control Panel Programs - Audacity 2.3.0. What is going on?..
    Yesterday I downloaded 2.4.2. Checked in my Downloads folder - sure, 2.4.2.

  3. Clicked to run .exe again - a dialogue window opened with a warnining:
    “Unknown Publisher. This file does not have a valid digital signature that verifies its publisher”. - I wonder why? I clicked to run and it was installed. I opened it - the current version 2.4.2. Great. I closed it.

  4. To pin it to the taskbar, I typed audacity on the windows desktop and selected Audacity to pin to taskbar. opened it from the taskbar - the current version. ok, Closed it.

  5. Opened programs in the Control Panel - 2.3.0. Clicked on the desktop shortcut - it opened 2.3.0. Clicked on the taskbar icon - opened 2.3.0. Back to the Windows desktop typed audacity - one icon available when opened 2.3.0.

  6. After I installed 2.4.2, theere were two options coming up on Windows desktop: “Audacity” and “audacity.exe” . I didn’t select .exe to pin it to the taskbar, of course. Now that option is gone. Desktop shortcut created in the install opens 2.3.0.

It looks like somehow 2.4.2 does not properly override 2.3.0. The only way I can open 2.4.2 is from the Downloads folder.

Questions:

  1. Shall I uninstall 2.3.0 from the Control Panel before running 2.4.2?
  2. Will this affect my numerous audacity files saved on my computer?
  3. Why does the download file have an invalid digital signature? (does not show the publisher) Come to think of it, I now recall that when I ran it for the first time, there WAS a publisher which I didn’t recognise (?)
  4. Bitdefender internet Security is a very reliable program. I’ve been using it for many years - It does not give false positives on identified viruses. Based on this, I’m positive that there was a virus in the downloaded file. Was the file somehow infected or replaced? I don’t know, I’m not a cyber expert. Your thoughts? Should I remove this download and download the again from another (trustworthy) site?

I would appreciate your help.