It is reading the 320gb as being 739,644,456,821. Something is telling me something is not being read correctly and I thought it might be the mb. The 320 is external and plugged into a new hard-drive case that is usb.
Are you just looking at the disk size in Explorer? It may be that the disk has only a relatively small partition on it. Try looking at the disk using Disk Management as follows:
* Sign on to an account with administrative rights
* Right-click the "My Computer" icon and select "Manage"
* Navigate to the "Storage -> Disk Management" item in the left pane and click to select it
* Look in the lower-right pane and scroll down if necessary until you see your drive. The total size should be listed at the left end of the partition map.
Why does explorer not show the correct number? Disk management says 298gb. I want to sincerely thank you for all your help.
In Disk Management's partition diagram for this disk, is the entire "bar" filled with one big partition, or is there just a little partition with lots of free space? If there's a little partition, that will be that Explorer is seeing. You can try to extend it or you can create a second, much larger partition to use up the extra space - if you do the latter then it will show up as a new "drive letter" in Explorer.
You've confused me with "I can't figure out where the other 22GB would be".
You said that it's a 320GB drive but Explorer shows only 702MB (ie, less than 1GB). I would expect you to be wondering where the other 319GB would be....?
I'm basing the following on the assumption that you have a small partition on the drive, although without actually seeing what you're seeing in the disk management utility and given what seems to be an inconsistency in the sizes you're mentioning I'm not terribly confident that this is actually the case...
You said this is an external drive, so I assume that it's not the OS drive. Therefore you should be able to re-partition and re-format it from within the Disk Management utility, as long as there are no files open on it. But save all the data on it first by copying it to some other drive, since partitioning the drive will wipe out all the data on it.
First, right-click on the existing partition and delete it. Make sure you do this on the correct disk! That should leave the entire drive unparititioned. Right-click on it again and create a partition. The default size should span the entire disk. Choose the option to format the partition using NTFS with the default values and you should be set.
If you've got any doubts about this then you should probably find a tech-savvy friend to give you a hand...
I'm sorry I confused ya.
Starting over on the explanation:
I bought a 320gb sata drive to use as a backup to my system.
When I went into windows explorer to make sure the drive was there I also checked with its properties. The properties read that the drive was only a 702 mb drive, which would indicate that 319 gb would be missing.
I did what you told me to do and found out that the device manager says that the drive is a 298gb drive which indicates that something is taking up 22gb on a new unused drive. I was wondering what was using 22gb.
The difference is probably due to the difference between binary GB (1024^4) and decimal GB (1000^4). Drive makers quote capacity in decimal because it gives a bigger number, Microsoft products report capacity in binary because... well I don't really know why. I've been a computer nerd for a long, long time and I see no reason to quote drive capacities using powers of 2. Considering Microsoft claims to want to make it's products easy to use this practice just seems unnecessarily confusing to me...