What about my human hard drive? Often it is cluttered with tracking cookies, viruses, worms, and extensions left over from situations that I thought I had un-installed. The brain is really a complex organ, not to mention the "mind" part of it. And the soul? Who can know it except my Maker? Yet He has given me some tools to keep it all clean and running right.
The conscience is a built in helper. He put it in right from the start. I have downloaded portions of the Bible, "basic instructions before leaving Earth" over the years. Actually, I have an automatic update scheduled for that every day. That is if I have left the power on. I mean, if/when I open the pages and begin to read. The Holy Spirit is another great installation that keeps me on the right track. He is all the anti-virus protection that I will ever need.
Really, there's no need for me to continue with this analogy. I'm sure the point has been made. We have to have our brains working, our minds clean, and our souls pure. Thank God, He has made it all possible.