the nearest predicted T.E.C.date for Hard Disk Maxtor 5T040H4 s/n T4JAZ9JC is closer than 3 days!

我的电脑老是跳出下面这个对话框"the nearest predicted T.E.C.date for Hard Disk Maxtor 5T040H4 s/n T4JAZ9JC is closer than 3 days!We recommend you to start backup of all critical data from this disk"是啥意思

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【好像不妙！】你用的什么磁盘检测工具？译文：最新预测你的MAXTOR 5T040H4型 硬盘（序列号T4JAZ9JC ）只有3天的正常工作寿命！我们建议你对本硬盘上的所有重要数据启动备份！T.E.C Threshold Exceeded Condition