...supposing I do get a malware on one, and it were to jump to the other PC somehow(like if I'm using a flash drive to copy files over, or were to network both PCs together), would the program be able to detect the same infection on both if it's giving inconsistent scans on the same files? ...
Let me attempt to shed some light on your concern...
When dealing with malware, it is not a good decision to rely on one or two programs to get rid of it.
If the computer got infected, diagnostic
programs come into play, and normally more than one is run. Based on what the diagnostics present, malware removal
programs are run, and also there are generally more than one. You can compare the process to treating an individual with cancer. You do not start with surgery until you know what type of malignancy is involved, and where it is located.
As to the "inconsistencies" of the programs mentioned, you are dealing with two different operating systems, Windows 7 and XP. A file called abcd
in Windows 7 may have code or properties that are slightly different from a file called abcd
in XP. The SAS staff involved with malware definitions may be able to answer the question a lot better than what I can.
In any event, there are programs that work in both Windows 7 and XP, others that work in Windows 7, but not in XP, etc.
To deal with an infection in Windows 7 the programs used may, or may not be the same ones used to deal with an infection in XP.
Bottom line, I would not lose any sleep over this.