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[Filip]

I have a problem,
In windows it says I have 596 GB of HDD but on HDD label it says Capacity: 640 GB..
Anybody knows why this happens?

My config:
AMD Athlon 2 X2 x64
2,00 GB RAM
Windows 7 Home Premium (32 bit)
Western Digital WD6400AAKS

[Axel]

There are probably hidden partitions to restore your OS... Ive got these too

[jtlusco]

when selling any form of storage device the size is rounded down to make the math easier such as 1GB = 1000MB when in relality 1GB = 1024MB so when they say 640GB the is 640000MB insteed of 655360MB wich is what a true 640GB drive would be. Add on top of that that every manufacture is alowed a certain amount of bad sectors on storage that takes away from the size. If you run a dick check and repair you may be able to recove some of the bad sectors ghiveing you more space but you will never get a true 640GB drive cause it is not truely 640GB it is 640 1000MB parts.
I hope i made this clear enough for people to understand being an IT Teacher i hvae had to exsplain this many times just not in wrighting.

[Axel]

If you run a dick check

Check what you write lol
Also this can cause this, what I explained in my previous post

[Filip]

If you run a dick check

Check what you write lol
Also this can cause this, what I explained in my previous post

Where can i check this lol

[Axel]

If you run a dick check

Check what you write lol
Also this can cause this, what I explained in my previous post

Where can i check this lol

I checked that in Easeus partition master (free)

[Usman55]

I have the same problem. The laptop contains a hard disk with 640 GB RAM. I have 2 partitions C and D, each having 297 capaacity. I understand that the 40GB is used for system recovery but on the D partition, there is a folder named HDD Recovery. So what the hell is going on? If there is a 40GB system recovery hidden partition, then why is the HDD Recovery folder in D Partition?

[mandai]

Filesystems by themselves will also require space on the disk, i.e. NTFS will reserve space for file attributes, security access, directory listings etc.

[M1z23R]

when selling any form of storage device the size is rounded down to make the math easier such as 1GB = 1000MB when in relality 1GB = 1024MB so when they say 640GB the is 640000MB insteed of 655360MB wich is what a true 640GB drive would be. Add on top of that that every manufacture is alowed a certain amount of bad sectors on storage that takes away from the size. If you run a dick check and repair you may be able to recove some of the bad sectors ghiveing you more space but you will never get a true 640GB drive cause it is not truely 640GB it is 640 1000MB parts.
I hope i made this clear enough for people to understand being an IT Teacher i hvae had to exsplain this many times just not in wrighting.

nerner; diSck

[Usman55]

Filesystems by themselves will also require space on the disk, i.e. NTFS will reserve space for file attributes, security access, directory listings etc.

Can do you know about my problem?