Trump has $200 million in donations since the election to stop the steal, of which he’s spent very little. He should have the best analysts that money could buy there to look at these machines. They should even offer to buy the machines and give full replacement, as some recovery options require destruction.
Having worked with computers since 1960 (IBM 7070 was a decimal-architecture intermediate data-processing system that was introduced by IBM in 1958. It was part of the IBM 700/7000 series, and was based on discrete transistors rather than the vacuum tubes of the 1950s. It was the company’s first transistorized stored-program computer)
I can say that any computer with storage memory can be wiped clean with no chance of data retrieval. There are scores of utilities available for anything in the world.
The very ability of memory bytes to store data makes it vulnerable to over-write it. The best you can retrieve is a date stamp of when the machine was last accessed. But that does not prove it was wiped clean and reloaded with clean software.
I got my “Count All Legal Votes” t-shirt yesterday and was so excited I put it on and went next door to my Tea Party neighbor and said, “after AOC said she was going to use FEC data to go after Trump supporters, I donated to the Trump campaign, and looky what I got!” An hour later he came over to my house with a shirt just like mine. I asked if my wife had handed it to him out the kitchen window. LOL! The delivery folks had to make two passes through our neighborhood to deliver those shirts.