How to extend primary partition in Win 7 program? Through search Google, such kind of question seems commonplace. Why a large numbers of users want to extend primary partition in Win7?
It is well known that Windows 7 32 bit requires at least 15-20GB (Windows 7 64 bit requires 25GB-30GB) to install. However, most of us don't partition so much space for installing system in the age of Windows XP. Therefore, after upgrade to Win7, users always get the warning notice "Low Disk Space" as below:
Note: To extend primary partition there must be continues unallocated space behind it or the extend feature may grayed out. If there's not you could only delete the secondary partition to get free space.
Step1. Log on Windows 7 as Administrator. Right-click "my computer" ->select "Manage"->"storage"-> "Disk Management".
Step2. In the pop-up window, right-click the primary partition you want to extend, select "Extend Volume".
Step3. Then it will pop up the "Extend volume wizard". Follow the wizard to complete extending system partition.
Situation A. Some time you may find that you can not extend primary partition when you delete the secondary partition. The "Extend Volume" is grayed out. As below:
In this situation, please notice that the space behind the primary partition is "Free Space" not the "Unallocated Space". This kind of space is released by logical partition. When you delete or shrink a logical partition you will get a free space, but this kind of space could not be added into primary partition. Therefore, under this situation, the "Extend Volume" is greyded out. This is one of the limitations on Disk Management. To solve this problem you need to use other third-party software such as the latest Partition Magic Windows 7, you could refer to "How to change partition size in windows 7."
Situation B. The unallocated space is not behind the primary partition. As below: