|OK, to summarize, it appears|
- you no longer have the original brand name software installation on your hard drive
- you are not concerned about restoring that original software installation, including restoring the original contents of the second partition
- the drive is about 250gb manufacturer's size, and has two partitions
- the second partition has no data and is 5.88gb in size in Windows
- you also have a 320gb external drive available
You would be expending a little, or A LOT, of effort to add a mere 5.88gb to the C partition, but if you really want to go through with it...
See response 3 and read it thoroughly.
If you don't understand something I said, say so.
1. Your quickest, easiest solution is to use a third party program such as Partition Magic 8.x which you must pay for unless you can borrow it from someone, or a freeware partition manipulation program such as Ranish, or some other one.
However, it is a very good idea to backup or copy what is on your C logical drive partition to somewhere else before you run such a program - usually nothing goes wrong, but if it does, you can restore your data from a backup or copy.
2. If you don't mind wiping the existing data contents of the external drive, you could use the MaxBlast version I told you about, IF you are allowed to use it when the Seagate drive is externally connected, to copy the existing C partition to it.
(If you are NOT allowed, you would need to remove the drive from it's enclosure, and install the Seagate drive in the computer, then you should be allowed to proceed, no problem.)
3. If you don't use a third party program such as Partition Magic or Ranish, and you want to use just MaxBlast and what is built into XP...
You would need to be willing to end up deleting the contents of the entire external drive, or another Seagate or Maxtor internal or external drive.
You would need to either ...
install MaxBlast on your C drive on this computer, and then make a bootable CD, or a set of floppies (but it requires a lot of them), the first one of which is bootable, so you can boot and run MaxBlast later.
- or - if you have more than one computer, or if you can do it on a friend's computer, install MaxBlast on another computer, and make the bootable Cd or set of floppies on that computer, so that you can boot and run MaxBlast on the subject computer later.
- delete the existing second partition in XP in Disk Management (or if you forget to do that, you can do it on the copy but it would require extra steps).
- if you installed it on your subject computer, use MaxBlast on the hard drive to copy the existing C partition to the external drive,
- if you DID NOT install MaxBlast on your subject computer, boot the subject computer with the bootable MaxBlast CD or set of floppies, and copy the existing C partition to the external drive
- boot with the bootable MaxBlast CD or set of floppies
- copy the contents of your external Seagate drive to your subject Samsung drive, which will automatically: delete all partitions previously on the drive, make one partition, and place the data contents on it.
Side notes -
There are no downloads on the Seagate site to make just the MaxBlast bootable CD or set of floppies. There is a manual for it you can download though.
They also have a similarly recent Disk Wizard version available you can use instead of MaxBlast, but I have not tried it, and there are no downloads on the Seagate site to make just the bootable CD or set of floppies (which also requires a lot of floppies) for that either (I downloaded it's manual and looked at it).
If you are copying the contents of an entire drive with this version of MaxBlast from one internal drive to another internal drive, such as if you want to use a larger drive as your primary drive, you don't need to make the bootable CD or bootable set of floppies. The MaxBlast installed on the original drive will work on both the copy and the original drive. If you want to remove the original drive, or still use the original drive but with different data on it, you merely jumper and/or connect the copy drive as your primary drive, and/or as the drive booted from in your bios Setup.
I suggested making the CD or set of floppies because your Seagate drive is external, and that could be a problem. If it were installed internally, you don't need those, running the Windows version from the copy would work fine.
I highly recommend you run CHKDSK /F in XP on all partitions on the drive or drives you want to fiddle with BEFORE you use any partition manipulation program. You can get all sorts of strange error messages, and your procedure(s) may halt or fail if you don't do that and there are errors in the data. E.g. for Partition Magic, what the error messages mean and what you can do to eliminate the problem are frequently only found on the Symantec web site, not in the Help in the program itself.
I have not used anything except Partition Magic to do this sort of thing, so I am not familar with other partition manipulation programs.
I have used various versions of Partition Magic over the years and have never had a problem with it, and have never lost any data because of using it, but you CAN have problems if you don't know what you're doing. There is some Help in the program itself, and more help info available on the Symantec web site, but only for PM 8.x (you must poke around to find the PM support).
Partition Magic 8.x can be installed and run in Windows, but it can also be run in Dos mode from a set of two floppies, the first one is bootable, that can be made by running the Setup in the RescueMe folder on the CD.
I recommend you do the latter.
The Dos bootable version of PM 8.x can be made on any computer without you having to register it or supply an installation or product key. However, the Dos version is NOT aware of the 8mb unallocated space thing (see below), at least it isn't in the version on the CD I have.
You probably must supply a product key or other installation key if you install the Windows version.
Partition Magic 8.0 has many bugs, but they should not affect the procedure you want to do. Versions higher than 8.0 (8.x) have had most if not all the bugs removed.
There is a free update/upgrade for 8.0 on the Symantec web site, but I believe 8.0 must have already been installed on a hard drive, and if you want to make the dos bootable version of the upgraded version, you must use a file or files on the hard drive to end up with the upgraded version of that dos bootable version, if it is even upgraded at all.
Don't use PM versions previous to 8.0 in this case. They can't properly handle the sizes of your large drives and the partitions on them.
What you need to do in this case in any partition manipulation program is to delete the second partition, if you have not already done so in XP, to make it's space available as unallocated space (unpartitioned and unformatted space), then you re-size (label varies) the C partition to add space to the END of the partition. In Partition Magic, once you have selected what you want to do, you click on Apply, then it runs a set of self executing Dos batch files that do what you want to do - similar probably applies to other programs.
The ~8mb of unallocated space OtheHill mentioned....
NOTE that when XP (or 2000) has prepared a hard drive, if the entire drive has been partitioned, there is actually a tiny un-allocated space at the end of each physical drive, of 8mb, or as close to that as possible (a little less or more). As OtheHill has pointed out, XP (or 2000) itself will not let you add that tiny unallocated space to the single partition, or to the last partition if it has more than one, on the physical drive if you delete the single partition, or last partition, and want to make a new one and include that space.
When you use a third party program to partition the drive it is often possible to include the last 8mb or so, and the drive and it's partitions will still work fine and be recognized in XP (or 2000), but if that ~8mb allocated space is not there, there are a few programs that have problems with that, particularly third party programs or utilities that "know" that ~8mb of un-allocated space is normally there in XP (or 2000), and you will get error messages, or the partition or last partition will not be recognized as valid (e.g. at least some versions of SeaTools), and you probably will not be told specifically what the problem is. The Windows versions of most partition manipulation programs, and hard drive manufacturer's free drive preparation programs, often won't let you partition that last ~8mb either, but the Dos bootable versions may allow it.
If you feel there is a possibilty you might use such programs in the future, you are better off to NOT partition that last 8mb, or as close as you can get to that, if you want the partition(s) to be recognized properly by the max possible such programs.