Steps I took that resulted in the problem:
After downloading ''fritzing.0.9.3b.64.pc', Windows Defender flags the download as containing a virus (Trojan:Win32/Varpes.M!cl):
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Category: Trojan
Description: This program is dangerous and executes commands from an attacker.
Recommended action: Remove this software immediately.
Items:
containerfile:C:\Users\xxx\Downloads\fritzing.0.9.3b.64.pc.zip
file:C:\Users\xxx\Downloads\fritzing.0.9.3b.64.pc.zip->fritzing.0.9.3b.64.pc/Qt5Core.dll
file:C:\Users\xxx\Downloads\fritzing.0.9.3b.64.pc.zip->fritzing.0.9.3b.64.pc/Qt5SerialPort.dll
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What I expected should have happened instead:
...
My version of Fritzing and my operating system:
... running Windows 10 (1607, latest version with latest updates)
Please also attach any files that help explaining this problem