I was facing the same issue and tried a lot and read so many blogs.
Most of the blogs refers to an option that require multiple process to perform. But the solution is way more simple than I have read across the internet.
If you tried to download any attachment from the google mail (Gmail) using the desktop or browser. You might see the error message:
Continue reading “Download the file from Gmail showing error?: Attachment contains a virus or blocked file. Downloading this attachment is disabled.”