Right Way to Change Partition Size with Partition Assistant in all Windows OS(s)

The reason to partition disk with a third party partition utility

Are you familiar with topic of disk partition on servers with a third party utility? Are you special in operating computer? Whether disk partition problems could be solved easily and safely or not by you? Maybe built-in disk management is available for someone who is practiced hand to satisfy his simple requirements, such as shrink partition to one half to the most, change partition label, and create partition, but these are always not enough to manage partitions, such as XP, 2000, 2003 OS, which support nothing to do a change partition size operation. So it is necessary to choose a 3rd-party tool to solve your present trouble.

The condition calls for change partition size

  • Low partition space: when adding a large capacity of program to the system partition, there will be following warning:


    It is suggested that delete old or unnecessary program to solve the low disk space problem. However the program in the system partition is always useful, so the best solution is to extend partition from other partition or the unallocated space.

  • Redundant partition space: the situation is that not only need not to economize volume, but also redundant of space. The best way to distribute reasonably is to change partition size or shrink partition to make more space and used for creating new partitions.

    Only with more flexible management on disk partition can your computer perform efficiently. There is a third party partition tool --- Partition Assistant is designated for your benefit. Specially, Partition Assistant Standard Edition, free to support disk partition management in Windows 8, Windows 7, Vista, XP, 2000, support adjust/change partition size, move partition, delete partition, and so on. All of the difficulties we meet with usually are no longer a problem for computer with the help of Partition Assistant now.

The process to change partition size

Download from the link: Partition Assistant Standard Edition (freeware), then run it on XP.

Firstly, shrink E partition: suppose the following window is your disk partition condition at present. Click E partition as arrow shows:

Click E: Partition


In the following "Move and Resize" bar, after mouse changed to be a double-headed arrow, keep pressing left side of mouse and dragging to the left till the amount you wish to reduce. Do as view shows below:

Shrink E: Drive

Note: after dragging operation, it is essential to make orders run actually by clicking "Apply" in toolbar.

Secondly, change partition size on C:, get free 44.53GB from E partition after the above actions; now add it to the C partition.

How to Change C: Partition Size?


To begin with, Partition Assistant Free Edition can't allow extending space from any free space automatically. Move the unallocated space to near by the target partition (C:), act as follows: click E partition, and left click after mouse to be squared-headed arrow and drag to the grey area on "Move and Resize bar", like:

Move Drive


Finished the procedure above, the unallocated space moved as you like:

Moving E: Partition


Next, move D partition as move E partition before so as to make the unallocated space next to C partition:

Moving D: Partition


Everything prepares well, click C partition in the next window, and makes the mouse point to the left slider to be a double-headed arrow, drag it to the right side:

Extending C: Drive

Note: Equally, it is essential to make orders run actually by clicking "Apply".

Later, the C: drive will be changed size from 96.36GB to 140.89GB.

New Partition Size

Note: before starting to run Partition Assistant, please close other application programs, otherwise the software will prompt reboot computer after clicking "Apply".

With development of the information technology, it is common that more and more people have demand of change partition size to optimize the computer performance and improve work efficiency. Therefore, Partition Assistant will upgrade constantly to be the best disk partition utility around the world and also PA Server Edition will provide the best support for Windows Server 2000, 2003 and 2008 operating system.


Download Partition Assistant Standard Edition (FREEWARE)



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