Typically you can only have 4 primary partitions per hard drive if you are using the MBR partition layout scheme. If you need more partitions than the maximum allowed (4), then there is a way to get many more partitions with only one hard drive.
By creating an extended partition you can have as many logical partitions as you need within that extended partition, thus you can have more than only four partitions. You can have 3 primary partitions and one extended partition (for a total of 4), and inside the extended partition you can have as many logical partitions as you need.
The one thing to keep in mind is that any type of Windows Operating System needs to be installed in a primary partition, otherwise you cannot boot into it. Windows XP in particular, needs to be installed in the first primary partition. For everything else, you can create as many logical partitions as you want inside the extended partition.
Resize/Move partition, i am using EaseUS Partition Master.Extend partition, especially extend system partition to maximize computer performance as well as better manage hard disk usage. By the way, you may find that there is a low disk space problem on a certain hard disk partition.Shrink partition for different usage.Make the unallocated space behind the partition you want to extend by moving partition.Copy partition with fast file-by-file copy to protect your data.Copy entire hard disk to another or migrate OS from HDD to SSD without Windows reinstallation.Upgrade system disk to a bigger one with one-click.Support GPT disk/partition copy.Provide option to shut down the computer after applying any operation. This function is especially useful when you copy the disk which contains the operating system.And Partition Master Free 10.5 is just released, allows to extend C drive (system partition), settle low disk space problem, manage disk space easily on MBR and GPT disk.
if Disk Management can help you, then you have to try third party partition manager like partitionguru to extend system partition.
You can format drives and partitions that are not in use by the system, but you can not extend the size of a partition.
Disk Management
backup operator or the administrators group
You will have to add additional hard drive and create dynamic volume which will allow you to add your new hard drive to a current partition. No, I mean use the free space of one partition to extend the non-contiguous partition, I learned AOMEI Partition Assistant could do this operation, here is the tutorial : disk-partition.com/help/align-partition.html
To recover a formatted disk or partition, you need a free partition recovery tool.
No diskdefragmenter cannot be used to format a partion. It is used to make all the files to get fragmented. Formatting of partition can be done by using disk management option in the computer management
As the best partition manager, currently on the market, Partition Wizard is also the best disk manager.http://www.partition-magic-manager.com/partition-magic/partition-manager/DiskManager.php
What have you done to remove this low disk space problem?In my experiences, the ways for you to resolve this low disk space problem could be different according to your different conditions:* If there is too unnecessary files or programs stored on this C partition, clean them all up to free some free space.* If there is enough free space on other partition, like D, E or F partitions, you can open Disk Management, delete or shrink the partition with free space and add the free space to your C partition there.* If the free space is not adjacent to your C partition, you also can use a partition resizing tool to extend this partition, like GParted, IM-Magic Partition Resizer Free and Active Partition Master, etc.* But, if there is no any free space left on the same physical drive, just buy a larger one to replace the old one.No matter what your conditions are, just save all partition data on other places in case of data loss.Read more information here:partition-magic-server-2003.blogspot.com/2013/11/resize-server-2003-partition-free.html
(On Windows), the active partition is a primary partition on a disk which Windows will load its files from. An active partition is always a startup partition. If there are several OS's on the one disk, Windows will load from the one marked as active. - pentavore
If there is an unallocated space on your disk, you can create partition directly with this unallocated space; if there is no unallocated space on your disk, you should first shrink a comparatively larger partition to get an unallocated space, then create partition