I would like to download a .jar file (Minecraft Plugin) from the Internet, this also went up to the last Windows Update. Now comes the message: "Virus scanning error" or "… Jar contained a virus and was deleted". It does not work with all JAR files.
Disable anti-virus temporarily for download:
https://tipps.computerbild.de/software/windows/wie-sie-windows-defender-deaktivieren-koennen-361467.html
Disable the virus protection.
If you use Defender: https://tipps.computerbild.de/software/windows/wie-sie-windows-defender-deaktivieren-koennen-361467.html
But check the file anyway:
http://www.virustotal.com/...stotal.com
There, the file is checked by all virus programs on the market. Do not worry, it will not take as long as you think.
Maybe there's something lazy about the file.
Depending on where you downloaded it. Are many "rotten eggs" out there.
Nonsensical false detection. Switch off / set up exception.
I can't disable the Windows Defender, it says: "These settings are managed by Norton Security Online manufacturer application."
Then you need to temporarily disable Norton Security:
https://support.norton.com/sp/de/de/home/current/solutions/v116457581