I did a fair bit of work around 2010 for a fellow who ran a EEG machine at a neurology clinic. It ran Windows 98, and was connected to the Internet. I cleaned t

I did a fair bit of work around 2010 for a fellow who ran a EEG machine at a neurology clinic. It ran Windows 98, and was connected to the Internet. I cleaned that thing of malware more than once. Replacement was prohibitively expensive unfortunately, as it require replacing the entire unit, not just the PC portion of it.