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I think this legit from AVG maker. This protects us from viruses.

Im also a satisfied user of malwarebytes with rkill combination that I run before malwarebytes.

I would also start with the physical connection then check the BIOS settings.

I wanted to share what I usually do copying/transferring big size of file.
Make back a backup of the files to have one big backup file then restore it on the computer it should be.

How about making all things on a touch screen?
You may use touch monitors for this. Guess that will look very nice.