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Unable to read sectors

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#1 Theo



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Posted 19 May 2017 - 02:49 PM

I have a probox drive enclosure I have had using usb3 for about 5 months now, I decided to try to use esata to connect it and after a week i got an email from stablebit scanner saying:


WDC WD80EFZX-68UW8N0 - 4.52 MB unreadable (9264 sectors) - The rest of the disk is still being scanned

  • Model: WDC WD80EFZX-68UW8N0

then I got another email saying:


  • WDC WD80 EFZX-68UW8N0 USB Device - 551 MB unreadable (1129373 sectors)
    • Model: WDC WD80EFZX-68UW8N 
  • WDC WD80 EFZX-68UW8N0 USB Device - 94.5 GB unreadable (198167765 sectors)
    • Model: WDC WD80EFZX-68UW8N0


So I decided to switch back to usb3, but what should I do to clear that error from scanner and put the drives back in my pool?

I ran chkdsk /f /r on both of them



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#2 Theo



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Posted 20 May 2017 - 10:13 PM

I installed the latest beta ( and will report back once it's done scanning.

#3 Theo



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Posted 22 May 2017 - 03:05 PM

I ran the scanner after I installed the beta and both the drives were found to be defect free.

#4 Christopher (Drashna)

Christopher (Drashna)

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Posted 23 May 2017 - 01:29 AM

Glad to hear it.  And yeah, there were some issues with some drives and how they reported disk info. 


You may want to try this version though: 


Christopher Courtney

aka "Drashna"

Microsoft MVP for Windows Home Server 2009-2012

Lead Moderator for We Got Served

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This is my server


Lots of "Other" data on your pool? Read about what it is here.

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