Find out the reason why Extend Volume greyed out in your Windows 11 computer, and then follow corresponding method below. Press Windows + X hot-keys and click Disk Management in the list. What to do when Extend Volume greyed out in Windows 11 If you right click a 2TB partition, of course Extend Volume is grayed out in Windows 11 Disk Management, even if this partition is NTFS and there's adjacent Unallocated space. This because the maximum partition size is 2TB on MBR disk. The remaining 2TB keeps as Unallocated and you can't create new volume with it. If you initialized a 4TB disk as MBR, you can use only 2TB.
Many people use 2TB or even 4TB disk for personal computer. Hard disk drives are much larger nowadays. There are some small special partitions on system disk such as EFI and Recovery partition, Windows 11 cannot extend these volume even if they are NTFS. Windows 11 Disk Management can only shrink and extend NTFS partition, partitions that formatted with any other file system are not supported. Besides the reasons above, there are additional reasons why Extend Volume greyed out in Windows 11 Disk Management. If you want to extend a partition by deleting the right adjacent one, the both partitions must be the same Primary or Logical drive. There must be contiguous Unallocated space on the right side. When you extending a data only partition in Disk Management, it is the same. Other reasons why Windows 11 Extend Volume option is disabled
If you right click C drive in Windows 11 Disk Management without Unallocated space on the same disk, of course Extend Volume is disabled to C drive.
In most of Windows 11 laptop/desktop/tablet computer, the system disk is solid state drive (SSD).
If you use virtual disk or some types of hardware RAID array, you can expand disk to get additional Unallocated space. If you want to extend a partition, you must delete or shrink another one to get Unallocated space. But to system partition C, it is always NTFS and Primary partition.Ģ common reasons why extend C drive greyed out in Windows 11 computer: 1, no Unallocated space next to C driveįirst of all, you should know that the size of a physical hard disk is fixed, a 250GB disk can't be decreased to 200GB or increased to 300GB. In Windows 11 computer, you can create a partition as Primary or Logical, and format a partition with FAT32 or NTFS partition. Why extend C drive greyed out in Windows 11 computerĬ: drive is where operating system running from, so it is different with data partition in some aspects.
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