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After format.. 16 kb used?


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7 replies to this topic

#1 goomba2

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Posted 01 May 2010 - 04:25 PM

Hi! I have been re-formatting my computer vigorously as a result of obtaining a lot of viruses. Currently, I am in the process re-formatting my external hard drive. Whenever I format it to a file system, in this case it's NTFS, I right click -> properties, and it tells me that 16 kb has already been used. Is this normal?
I know that viruses can be that small, so it's worrying me quite a bit. Any help is appreciated. Thanks!

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#2 computerxpds

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Posted 01 May 2010 - 04:57 PM

are you referring to it saying it is that full or is the original size smaller than the advertised size?
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#3 goomba2

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Posted 01 May 2010 - 05:32 PM

are you referring to it saying it is that full or is the original size smaller than the advertised size?

I don't think so. I'm saying that whenever I do a fresh format of the drive, it says that out of the 300 gb (320 gb advertised) 16 kb is used; even when I haven't put anything at all yet on the drive.

#4 nkfro

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Posted 01 May 2010 - 09:33 PM

are you referring to it saying it is that full or is the original size smaller than the advertised size?

I don't think so. I'm saying that whenever I do a fresh format of the drive, it says that out of the 300 gb (320 gb advertised) 16 kb is used; even when I haven't put anything at all yet on the drive.



Could be just be bad or inaccesable sectors on the hard drive. It's not unusual when dealing with aggressive malware infections.

#5 computerxpds

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Posted 01 May 2010 - 09:38 PM

Just for future reference try not to use quotes all the time in replies. :thumbsup: Other wise you guys are doing great. You may be right nkfro. :huh:
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#6 Andrew

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Posted 02 May 2010 - 12:42 AM

This is a normal characteristic of NTFS.

In NTFS, every file is listed in the Master File Table (MFT) which itself is stored within the NTFS volume. Since the MFT has to know about itself, it reserves the first 16 MFT records for itself. This just about equals 16KB. So even on a freshly formatted NTFS volume, 16KB will be in use.

#7 goomba2

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Posted 02 May 2010 - 12:06 PM

Thank you nkfro, computerxpds, and Andrew! I really appreciate it.

#8 computerxpds

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Posted 02 May 2010 - 12:14 PM

You are very welcome. :thumbsup:
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