I made partition in my Kingston 4 GB USB and one of the partition is not opening. I want to delete partitions to get my 4 GB capacity back.

http://www.filehoo.com/download/Partition-Magic-8,0.aspx
you could download partition magic which is 100% free
it hardly seems worth while for a gb usb drive
if you open up your drive then right click inside then select new folder you can make as many of these as you like and name them when you first make them or at a later date
ie: Partion 1 Partition 2 ......

if you need more help with this or if i have misunderstood the problem post a reply

hope this helps you

for usb drive with capacity above 4 GB , the most common problem is lost partition, for geeting the patition again you should create it manually with partition tools software like, acronis , magic partition or etc, that support to read usb partition. you could find it all within hiren's boot cd if you had one.

Free Partition Software - MiniTool Partition Wizard Home Edition MiniTool Partition Wizard Home Edition is a free partition manager software designed by MT Solution Ltd. Our partition manager supports 32/64 bit Windows Operating System including Windows XP, Vista and Windows 7. Home users can perform complicated partition operations by using this powerful yet free partition manager to manage their hard disk. Functions include: Resizing partitions, Copying partitions, Create partition, Delete partition, Format partition, Convert partition, Explore partition, Hide partition, Change drive letter, Set active partition, Partition Recovery.

You cannot. You delete both and then make one partition.
There is software available that will let you resize a partition. (E.g. Acronis Disk Director). In this case you delete one partition and the resize the remaining partition to use the space created.
Most important: Back your data up to another hard disk before making any changes to your disk.

If this helps please vote for my solution.

You may have the hard drive partitioned into two or more partitions.
Delete all the partitions and create a single partition and then format this single partition on the hard drive.

The 'FAT' file-system uses 16-bit arithmetic, and thus is limited to about 2GB in size.
The 'FAT32' file-system uses 32-bit arithmetic, and thus can easily format an 8GB device.

So, be sure to choose 'FAT32'.

Also:
Click Start
Right-mouse click My Computer
Choose Manage
Click Storage
Click Disk Management (local)
Does the card show a 1.87GB "partition", plus 6.13GB of "unused" space?
If so, then delete that "small" partition, and then create a new partition that "spans" the entire 8GB.
Then, FORMAT that partition.

Use any linux bootable distro, like puppy (100 MB ) Slax ( 200 MB) or ubuntu to make a live boot, or use any pc which has linux installed can format your USB to its full capacity.

format it and it will show its original storage capacity

If you have not tried this already, go to control panel, click on administrative tools, then double click computer management. In the left pane under computer management, click on disk management.
Make sure your Kingston data disk is plugged in to your usb port. In the right pane you should see your flash disk represented by a white bar with blue line on top. Right-click on the white bar and select "delete partition" Once the partition is deleted, right-click the bar once again and select create partition. Once you have created this partition, you should have the use of the maximum capacity of the flash drive.

I bought a new kingston traveller pen drive with the locking software, I installed it and after deleted the software unaware, now I can't go into my private partition.