Create Partition Problem in Windows 7

With MBR partitioning you are limited to four partitions. You can have four primary partitons as you have or you can have three primary and one extended partition. The extended partition can then be divided into logical drives. The problem is you have four primary partitions. I'd be leery of deleting any of them as you may not be able to recover the system. It sounds like the thre extra partitions are all part of the Toshiba recovery process. To get more drive letters you'd have to delete one of the primary partitions. Slide all the partitions so you end up with one continuous unallocated block. Create an extended partition in this block then create however many logical drives you want within the extended partition. Because of the way Toshiba created the partitions it is unlikely you'll be able to get a continuous unallocated block with the built in Windows tools. You'd probably need a third party partitioning tool. As I said though you'll probably lose the Toshiba system recovery functionality if you do this.

http://en.wikipedia.org/wiki/Master_boot_record

http://en.wikipedia.org/wiki/Partition_types#PC_partition_types

Kerry Brown MS-MVP - Windows Desktop Experience

Windows 7 has the option to resize, this means you can shrink or extend partitions. The Disk Management in built utility is able to do the job of shrinking and expanding partitions and it does not require any 3rd party utilities. To manage your partitions, open Control Panel and type "partitions" or "hard disk" in the search bar on the right corner and you can see the link "Create and Format Hard Disk Partitions" under administrative tools.

This will open up the disk management utility for Windows 7

To shrink any volume, right click on the desired volume and select the option "Shrink Volume". This will open up the Shrink Volume window and you need to specify the amount of space you want to shrink.

If you want to extend any volume in Windows 7, right click on the drive to be extended and select "Extend Volume". In the next step you need to specify the amount of space by which you want to extend the volume.

Please note that extend volume for any drive will work only if there is continuous free space available on your hard disk.

As suggested by Mr. J W Stuart, the following partitions were nothing related to OS. I dropped the following partitions as I need big ones:

             Simple   Basic                      Healthy (primary partition)             21.13GB     21.13GB        100 %   No                     %0

             Simple   Basic                      Healthy (primary partition)             12.21GB     12.21GB        100 %   No                     %0

After that I shrinked C: drive to create unallocated spaces of 100GB & 100GB and right click on these unallocated spaces to make simple volumes of

E: & F: drives. Now I have C: ,  E: &  F: drives.

Thanks for all specially Mr. J W Stuart to help me.

Regards,

Shakeel

You can't create more than four partitions no matter which partitioning program you use. It is a limitation all operating systems face if they use MBR partitioning.

Kerry Brown MS-MVP - Windows Desktop Experience

Hi,

This means that through Disk Management in Windows 7, you can't create more partitions which is drawback. I don't know which third party free Partitioning Wizard software will work.

Please help me.

Regards,

Shakeel