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Extend Partition in Windows 10 with MiniTool Partition Wizard

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    "Since upgrading to Windows 10, I have had to keep extending the primary partition, now the system partition is up to 250Gb but almost full. I have free capacity on another partition, from which I have been taking spare capacity with any problems so far, but the partition tool Disk Management won't let me take any more. Would appreciate any/all suggestions to extend partition Windows 10".

    Windows 10 System Partition Is Almost Full

    Due to the advantages of Windows 10 including Cortana, hologram technology and more, many of you choose to upgrade to Windows 10 from Windows 7/8.1. After a period of time, more and more data are saved on your system partition, and the data occupy much disk space. Usually Windows will prompt you a specific message "You are running very slow on disk space on local disk (C:). Click here to see if you can free space on this drive". When low disk space warning happens in your PC, the PC runs slowly, then you probably choose to free up some disk space by deleting some unnecessary or old files with Windows Disk Cleanup tool. However, in my opinion, this way can free up a bit of disk space to a certain degree. Therefore, the best way is to extend C drive in Windows 10 if there is some free space on other partitions. But how to achieve this aim? Read on please.

    How to Extend Partition Windows 10

    extend 1 Use Disk Management to Extend Windows 10 Partition

    When referring to increasing partition size, the usual way is to use Windows Disk Management tool. Nevertheless, sometimes when you open this free tool and right click C drive, you will view "Extend Volume" feature is greyed out or disabled in Windows 10, so you can't extend volume.

    can't extend volume

    Do you know the reason? In fact, it is due to the limitation of Disk Management. Here are two points you should pay attention to:

    1. The unallocated space must be on the same disk, and it must follow the system partition. That is to say, Disk Management only can extend a primary partition with contiguous unallocated space on the right side (logical partition with free space).
    2. The partition you want to extend should be NTFS or RAW file system, otherwise, Disk Management will fail to extend volume.

    In this case, it is because the unallocated space isn't adjacent to C partition. You may ask: is there any tool to do this work? Fortunately, I have one.

    extend 2 Run MiniTool Partition Wizard to Extend System Partition Windows 10

    Since Windows built-in Disk Management tool fails to extend C partition, you need to download a partition and disk management tool which should be compatible with Windows 10 well. Here, MiniTool Partition Wizard is recommended since it is popular with more than 15,000,000 users. This program has five editions, among them, Free Edition is available in Windows 10/8/7/XP/Vista PCs with many powerful functions, such as resize partition, extend partition, format/wipe/copy partition, rebuild MBR, do partition recovery and more.

    Its "Extend" feature enables you to expand partition by taking free space from any other existing partitions or unallocated spaces on the same disk. So firstly download MiniTool Partition Wizard Free Edition and install it on your PC to finish extending C drive successfully.

    Let's see detailed steps:

    Step 1: please select the Windows 10 system partition and click "Extend Partition" function from the left pane. Also it is OK to right click on C partition and select "Extend" feature.

    extend partition windows 10

    Step 2: Then, choose to take free space from a partition or unallocated space and drag the sliding handle to decide how much free space to take. After that, click "OK" to go back to the main interface.

    extend c partition windows 10

    Step 3: Now you can view the partition is enlarged, but this effect has not been applied to computer, so you need to click on "Apply" button to execute all changes.


    In addition to the above feature, you also can use its "Resize Partition" feature to free up some disk space and then extend C drive in Windows 10.

    In summary, if your system partition is running out of disk space, please try using MiniTool Partition Wizard to quickly solve extend partition Windows 10 issue now.