依各原廠規定為主，通常依購買憑證之購買日起計算，若無購買憑證則依照出廠日期計算。
購買日起七日內，產品有任何非人損因素的問題，且原包裝配件都在才可申請，並由原廠判定是否可換貨，其流程需7~10個工作天(不含假日)。
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WINDOWS 2022 STD Additional License (CPU 4 Core) - 主機搭配之CPU核心數超過16核心, 需每4核心加購add. License
Windows Server 2019 Standard Additional License (2 core) (No Media/Key) (Reseller POS Only)
