A:Answer Microsoft 365 Personal requires one of the three most recent versions of macOS in order to operate. As long as this is the case, you should have no issue installing and running your new software. For further guidance, including a full outline of system requirements, visit here: https://www.microsoft.com/en-us/microsoft-365/microsoft-365-and-office-resources?ocid=oo_support_mix_marvel_ups_support_smcofficeinstall_inline&rtc=1#coreui-heading-5dcqxz4