I have been thinking about getting an old computer and running it without a hard drive using a Linux OS on a CD. No viruses and no tracking cookies, just turn it off and there is nothing saved.
I’m running the Malwarebytes scan at present, which will likely take some time to do. I had some difficulty getting it started, receiving the same types of error messages I get with looking at so many webpages (i.e. “page is not responding”).