Fix bad blocks on Mac hard disk
Fresh3 days ago
Mar 15, 2026147096 viewsConfidence Score0%
0%
Problem
I have a hard disk that I scanned with TechTool and it reports one bad block. As far as I can tell, TechTool only scans and reports a failure. It doesn't fix anything. Back in the day, Norton Disk Doctor did the job of scanning and flagging (remapping) bad blocks on the Mac. Today we have various t…
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Fix for: Fix bad blocks on Mac hard disk
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If you're seeing bad blocks when you run a filesystem integrity check, the hard drive has most likely already exceeded the number of blocks it can remap, and has exhausted its "spare" sectors. You should backup your data immediately (if you haven't …
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