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Getting full capacity from 500Gb HDD

Last response: in Storage
May 11, 2010 9:56:28 AM

Hello,I know that this question I'm asking is familiar.But i have lost 35Gb of my new 500Gb(I have 465Gb) HDD right from the initialization.35Gb is big for me.How can I get that back.And I have not put any data yet to HDD till I get any help.Thanks for any help.Initialization and formatting done through SIL sata 3112 1.5*2 pci card.
a b G Storage
May 11, 2010 12:57:57 PM

I don't know the exact calculations offhand, but a 500GB hard drive will never give you 500GB under Windows. The mfrs use 1,000,000,000 bits/gb and OSs use 2^30(?) bits/gb, so you will always see less than what is claimed.
a b G Storage
May 11, 2010 12:59:28 PM

Try as you might you will never get the 35GB back. 465GB is correct for a formated 500 GB drive.
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a c 327 G Storage
May 12, 2010 4:57:22 AM

BUT here's the good news: you did NOT lose any space! When a disk manufacturer says the unit holds "500 GB", they really mean 500,000,000,000 bytes. But Windows uses "GB" to mean 1024 x 1024 x 1024 bytes, or 1,073,741,824 bytes. Using that definition, it calls that same 500,000,000,000 bytes "465.66 GB".

Now, what about the space used up by files? Well, Windows still uses that definition of "GB". So if it says your big file is 1.000 GB, it is actually 1 073 741 824 bytes! In this system, by the way, 1.000 MB is actually 1024 x 1024 bytes, or 1,048,576 bytes. Looked at another way, to store a file that actually has 1,048,576 bytes of data in it, it will occupy on your drive a space that Windows will tell you is 1.000 MB, NOT 1.049 MB. The space is still all there. Windows just uses a slightly odd-sized "yardstick" when it goes measuring MB and GB.
May 12, 2010 7:20:00 AM

Well that's a relief.
So the Giga means 1000 as for the disk manufacturer and 1024 as for the Windows considering Digital calculations , which I thought Both 1024.Thanks a lot Paperdoc.
May 12, 2010 7:24:00 AM

Best answer selected by helitha.