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Weird 'Ghost' Files on USBs


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11 replies to this topic

#1 CaptainBoj

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Posted 22 January 2016 - 10:15 AM

I work at a photo printing shop and sometimes when customers bring in their USB, they have strange transparent copies of their files next to the real ones, only with a full-stop at the beginning. They can't be opened or viewed in any way as far as I've tried.

Sometimes these 'ghost' files don't even have a counterpart.

 

I didn't really give them any thought until someone transferred them onto one of our printers and crashed it.

 

I was just wondering what they were and what causes them?

 

I've attached a screenshot of them (I blurred the thumbnail previews for privacy reasons)

Attached Files


Edited by CaptainBoj, 22 January 2016 - 10:16 AM.


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#2 Jman005

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Posted 22 January 2016 - 10:30 AM

This seems quite strange, especially because the file extension is made of random numbers and letters...... Seems like some sort of corruption to me, but I don't know why a working copy would be provided with the broken one.



#3 FreeBooter

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Posted 22 January 2016 - 10:48 AM

The file system looks like corrupted, check for file system errors on USB flash drive.


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#4 CaptainBoj

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Posted 22 January 2016 - 10:56 AM

Is that when it asks you whether you want to scan for errors or not?



#5 FreeBooter

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Posted 22 January 2016 - 10:58 AM

If there is a prompt to scan for errors then accept to repair any errors.


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#6 CaptainBoj

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Posted 22 January 2016 - 11:05 AM

ah, no I don't have any on me at the moment, I was just wondering what caused it

 

I was just curious, since it's never happened on any of my devices before


Edited by CaptainBoj, 22 January 2016 - 11:10 AM.


#7 Jman005

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Posted 22 January 2016 - 11:11 AM

In simple terms, the USB may be corrupted. If you want to get rid of the "ghost files", you'll probably have to get a new USB.


Edited by Jman005, 22 January 2016 - 11:12 AM.


#8 FreeBooter

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Posted 22 January 2016 - 11:12 AM

Well next time scan for file system errors if you come a cross same issue you can manually check for surface errors from properties of storage drive from Tools tab click Check button and place a check mark on both check box click Ok button.


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#9 CaptainBoj

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Posted 22 January 2016 - 11:38 AM

any ideas what causes USB corruption?



#10 FreeBooter

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Posted 22 January 2016 - 12:08 PM

any ideas what causes USB corruption?

Obviously, yanking out a drive while it's being written to could corrupt the data. However, even if the drive isn't actively being written to, you could still corrupt the data. By default, most operating systems use what's called write caching to get better performance out of your computer. When you write a file to another drive like a flash drive the OS waits to actually perform those actions until it has a number of requests to fulfill, and then it fulfills them all at once (this is more common when writing small files). When you hit that eject button, it tells your OS to flush the cache that is, make sure all pending actions have been performed so you can safely unplug the drive without any data corruption. On Windows, click the "Safely Remove Hardware" icon in the system tray, choose your drive from the list, and then remove it once it notifies you of its safe removal.


Edited by FreeBooter, 22 January 2016 - 12:09 PM.

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#11 CaptainBoj

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Posted 22 January 2016 - 03:16 PM

aha, thank you. I thought it was something like that... Just wanted to make sure so it didn't happen to me



#12 FreeBooter

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Posted 22 January 2016 - 04:00 PM

Your very welcome. :crazy:


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