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Scannerz is a hard drive and system analysis tool that not only identifies existing hard drive problems, but also identifies irregularities which, if repeatable, are often the pre-cursors to failures. Scannerz can identify not only surface scan errors, but may also be used to isolate more complicated system problems associated with the hard drive and its supporting components. Scannerz allows users to stop and resume a scan at a later time or day, which is useful for users with very large drives. Scannerz Diagnostic Mode (new in version 1.7) can identify more problems than previous versions including data corruption from more...

What's New

  • New: Support for 4K Advanced Format Native mode drives
  • New: Enhanced support for damaged drives and non-native Mac drives


OS X 10.5 or later

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Richard_browne Member IconReview+2

A great tool to scan your hard drives for bad sectors & other hardware problems. scannerz won't offer to defragment your file system, or "optimise" your OS, or any other BS. It does one thing and does it well - scan your hard drives to look for hardware problems.

I recently purchased scannerz and had a problem running it on my Mac Pro with an unusual setup. The developer went out of his way to work with me to solve the issue.

If you want a tool to scan drives for hardware issues, from a developer with excellent support, then look no further.

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RKO123 Member IconReview+2

I got this months ago from their web site. I've used it several times. Essentially a very boring tool UNTIL something goes wrong with your system, at which point it earns it's keep.

I started getting weird slow downs and went with the "old reliable" TechTool Pro which promptly told me there was nothing wrong with my computer. I remembered I had this thing sitting around doing nothing and decided to use it. Scannerz immediately started picking up what it calls irregularities - and a lot of them too.

Long story short - my heads had apparently crashed, but not so severely that they were unreadable. TechTool Pro wouldn't pick this up, Scannerz did.

Scannerz does really nothing but drive and drive related system testing, but it's picking stuff up better than anything else. It's easy to use, (I could teach my dog to use it!! :-) ) but their manual needs to be re-written because it's way too long and way too technical for most people, IMHO.

Considering how inexpensive this tool is, I'd say it's well worth the money.

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> 5 2


Current Version (1.x)


Downloads 2,796
Version Downloads 78
Type Utilities / System
License Commercial
Date 11 Jul 2014
Platform OS X / PPC 32 / Intel 32
Price $39.95