Your friend can't extend the C: partition because it's running out of space, and the "Extend volume" option is grayed out due to the unallocated space being on the other side of the D: partition. To resolve this, they can try using a third-party partition manager software to add the unallocated space to the D: partition, and then extend the C: partition. Alternatively, they can also consider reinstalling Windows 7 to a larger partition, or using a different partition manager software that allows for more flexibility in partition resizing and management.
The main reason is that Windows Disk Management requires adjacent unallocated space to perform the task, but if there is no such space available, the process cannot be completed. This limitation also means that Windows Disk Management is unable to move partitions in the first place.
To solve this problem, you can use highly praised partition magic tools, such as Qiling Disk Master Standard Edition or Professional (PA Pro), which are suitable for Windows 7, 8, XP, Vista, and 2000 home users. These tools can help add unallocated space to system partition easily, making them a great choice for those in need of advanced features. Simply follow the 4 steps provided to use these tools effectively.
1. Launch Qiling Disk Master to get following disk information:
2. Right click on the D partition and select "Resize/Move Partition", then drag the D partition rightwards in the next window.
3. To resolve the issue, right-click on the system partition and select "Resize Partition". In the next window, drag the right handle of the C: partition to the right to add the unallocated space to the partition. This will move the unallocated space behind the C: partition and allow you to allocate it to the partition.
4.To save changes, click "Proceed" and wait several minutes. The unallocated space will then be successfully added to the system partition.
So, with this all-For a straightforward and user-friendly solution to add unallocated space to the system partition in Windows 7, consider using a reliable program. This software provides an easy method to accomplish this task, and its features can be further explored by reading related articles.