Upgrade of macOS High Sierra to macOS Catalina or Majova

I want to upgrade my macOS High Sierra 10.13.6 to a Catalina or Majova but the response I was getting is: "This version of macOS cannot be installed on this computer". is there anything I can do to get this update done especially macOS Majova or Catalina please.

can any one assist me to get this done please. thanks in anticipation of favourably response(s)

MacBook, macOS 10.13

Posted on May 5, 2021 04:23 AM

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Posted on May 5, 2021 04:40 AM

alright, thanks for your help.

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Upgrade of macOS High Sierra to macOS Catalina or Majova

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