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<p>Even if the <gui>SMART Status</gui> indicates that the disk <em>isn't</em> healthy, there may be no cause for alarm. However, it's better to be prepared with a <link xref="backup-why">backup</link> to prevent data loss. You may wish to take the computer/hard disk to a professional for further diagnosis and repair.</p>
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<p>If the status says "Pre-fail", the disk is still reasonably healthy but signs of wear have been detected which mean it might fail in the near future. If your hard disk (or computer) is a few years old, you are likely to see this message on at least some of the health checks. You should <link xref="backup-how">backup your important files regularly</link> and check the disk status periodically to see if it gets worse.</p>