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Internal HD to external HD

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#1 jxm1092


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Posted 22 September 2012 - 09:00 AM

I have an old hard drive from a computer that I put in a case to use as an external hard drive. When I click on it from My Computer it shows 149GB of storage but only 141GB available. Should I reformat the drive to clear up space and turn it into just a plain HD? If so whats the best way to do this? Thank you.

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#2 SleepyDude


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Posted 22 September 2012 - 09:09 AM


Those number are correct its normal some differences on size because the file system structures reserve some disk space.
If you want to remove everything from the disk and start fresh you only need to format the disk, open My computer, right click the drive and select format.
Use the quick format option if you know if the Hard Disk is fine, if not sure do a normal format, it will take long time but will check the disk for bad sectors.

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#3 hamluis



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Posted 22 September 2012 - 03:17 PM

FWIW: Hard Drive Size Differential - http://wdc.custhelp.com/cgi-bin/wdc.cfg/php/enduser/std_adp.php?p_faqid=615

But...you should see 149GB, not 141.

Start/Run...type diskmgmt.msc and hit Enter. Do a screen capture reflecting all drives, partitions, etc...and post it. My guess is that you have a hidden partition taking up the 8GB differential.


Edited by hamluis, 22 September 2012 - 03:20 PM.

#4 MDTechService


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Posted 26 September 2012 - 12:03 AM

Sounds like a rescue/restore partition if you had Windows, possibly a swap partition for Linux.

Regardless, 141 is not the "correct number". Manufacturers use a different definition of gigabyte, somewhere between 148-150 is the expected available space for a 160GB hard drive.

You don't need to go through the entire disk format process to check for bad sectors. In the unlikely event that you don't have a second partition, you can check for bad sectors by running command prompt and typing "chkdsk /r".
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