Merge Unallocated Space with C Drive | Extend Volume Greyed Out Easy Fix (2026)
Is the "Extend Volume" option greyed out in Windows Disk Management? 😫
In this video, I'll show you the easiest way to merge your unallocated space back into your C drive using MiniTool Partition Wizard.
This problem usually happens because a Recovery Partition is located between your C drive and the unallocated space. Windows Disk Management cannot move partitions, which is why the Extend Volume option becomes disabled.
✅ In this tutorial you'll learn:
Why Extend Volume is greyed out
Why Windows Disk Management can't merge the partition
How to move the Recovery Partition safely
How to merge unallocated space into the C drive
Increase your C drive storage without losing data
💻 Software Used:
MiniTool Partition Wizard
⚠️ Always back up your important data before modifying partitions.
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Channel: HM Terminal
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