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N.S. on Vista o.s. seems to be at version 18.104.22.168
Maybe I really not need a solution, but after liveupdating even a few minutes ago, Norton Security version on Windows Vista looks like at 22.214.171.124, while on the win10 machine it is something different. 22.*.*.147 I believe there. Is this one of the limitations for staying Vista on a computer?