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Windows 7: How to restore HDD factory capacity ??


04 Dec 2011   #1

Windows 7 Ultimate SP1 x64
 
 
How to restore HDD factory capacity ??

Hello Sevenforum

i have a 640 GB internal HDD but it shows only 596 GB. I found this here:
Restoring Factory Hard Drive Capacity
but i wont work because i have a x64 operating system !!!

Can someone help me ??

Thanks



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04 Dec 2011   #2

Microsoft Community Contributor Award Recipient

Windows 7 SP1, Home Premium, 64-bit
 
 

596 GB is the normal usable capacity on a 640 GB drive. Nothing is wrong.
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05 Dec 2011   #3

Windows 7 Pro-x64
 
 

596 x 1024 x 1024 = 624,951,296 bytes. I suspect you may have the balance tied up in System Reserved. Open the Disk Manager and it should show the other 15,048,704 bytes or ~14.35GB as system reserved. Disk drive "market" specs differ from Windows' displays but you're usually getting the full capacity.
My System SpecsSystem Spec
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05 Dec 2011   #4

Windows 7 Ultimate SP1 x64
 
 

hey carwiz

i got only this here :


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How to restore HDD factory capacity ??-w.png  
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05 Dec 2011   #5

Microsoft Community Contributor Award Recipient

Windows 7 SP1, Home Premium, 64-bit
 
 

Quote   Quote: Originally Posted by HC4L View Post
hey carwiz

i got only this here :

That looks fine.

The usable space is only about 93% of the advertised space.

.93 x 640 is 595.2.

You show 596.07 on C, which is close to 595.

The loss is about 7%.
My System SpecsSystem Spec
05 Dec 2011   #6

Windows 7 Pro-x64
 
 

Ops. Yeah, memory fault. The missing space is disk reserved. The 100MB is Windows System Reserved. Sorry.
My System SpecsSystem Spec
05 Dec 2011   #7

Windows 7 Ultimate SP1 x64
 
 

Alright thanks for your help guys
My System SpecsSystem Spec
05 Dec 2011   #8

Microsoft Community Contributor Award Recipient

Win 7 Pro 64-bit
 
 

To put things another way, computers think in powers of 2 (1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, and so on), while people think in terms of powers of 10 (1, 10, 100, 1000 and so on.) To a manufacturer, 1000 megabytes = 1 gigabyte. But a computer says, no ... that's just not right. 1024 megabytes = 1 gigabyte.

Your 640 gigabyte drive = 640,000,000,000 bytes according to the manufacturer. But if you keep dividing 640,000,000,000 by 1024 you'll eventually see it's really 596.046 gigabytes according to the computer. If you were a manufacturer who is selling a hard drive that has 640,000,000,000 bytes, would you rather call it a 640 gigabyte drive or a 596 gigabyte drive?
My System SpecsSystem Spec
05 Dec 2011   #9

Windows 7 Pro-x64
 
 

I have 128GB SSD, a 500GB and 750GB HDD and this is what mine shows.


Attached Thumbnails
How to restore HDD factory capacity ??-diskmanager.jpg  
My System SpecsSystem Spec
05 Dec 2011   #10

Windows 7 Professional SP1 32-bit
 
 

Quote   Quote: Originally Posted by carwiz View Post
596 x 1024 x 1024 = 624,951,296 bytes.
Sorry, just wanted to point out a mistake here - carwiz missed one step while going from GB to bytes:

Code:
                     596 GB
x 1024 =         610,304 MB
x 1024 =     624,951,296 KB
x 1024 = 639,950,127,104 bytes


In "marketing speak" that's about 640GB. The 10GB difference is easily explained by partitioning and filesystem usage overhead plus restore points.


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 How to restore HDD factory capacity ??




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