By Teresa / Last Updated May 25, 2020

About Fdisk

What is Fdisk? Fdisk is an advanced command line tool that was part of earlier versions of Windows according to Microsoft. The latest version of Windows that comes with Fdisk program was Windows 98 with a DOS shell. Fdisk was used to create, delete, and format partitions on hard disks that were formatted using the FAT32 and other FAT file systems.

Fdisk doesn’t work with partitions or hard disks that are formatted using NTFS file system. Therefore it has been replaced by diskpart.exe in Windows 7 (both 32 bit and 64 bit) and in later OS like Windows 8/8.1/10 which comes with NTFS file system. Even though today’s technology supports to convert NTFS to FAT32, it is still removed. One possible reason is Fdisk hard drive in Windows 7 is much more risky because its operations are almost irreversible. Another one is Fdisk is incompatible with large size hard disks.

Replacement of Fdisk tool in Windows 7

Since Microsoft has removed Fdisk on Windows 7, it replaced Fdisk with another utility. If you type fdisk in the Start search box in Windows 7, it will prompt out Create and format hard disk partitions option which will lead you to its new added feature Disk Management. Disk Management is GUI (Graphical User Interface) form and diskpart.exe is more similar to Fdisk due to its CUI (Command/Character User Interface) form. You can just type diskpart.exe in the Run box to open it. With these two replacements, you are able to manage objects (disks, partitions, or volumes) in your computer, such as, create new simple volume, extend volume, shrink volume, format partition, and delete partition.



However, these basic disk managements no longer meet Windows users’ needs. Merge Partitions, for instance, merge two data partitions into big one without losing any data. You have to delete one volume and then extend the rest one to realize it using Disk Management, which may end up with data missing. Another example is you cannot extend volume unless the unallocated space is adjacent to it.

Another Fdisk alternative in Windows 7 AOMEI Partition Assistant takes care of all of that. It is an all-around partition manager for Windows 7/8/10 as well as for Windows previous OS, Windows XP/Vista. Unlike aforementioned two tools, you can preview the result and “undo” actions you take before with this software. For most general Windows users, the free version AOMEI Partition Assistant Standard is more than adequate. Download it to manage your hard disk now (take merge unallocated space to C drive for example).

Extend C drive with unallocated space using AOMEI Partition Assistant

You can generate unallocated space from other large size partitions by shrinking them if you don’t have one. Optionally, you can allocate free space to C drive directly using the professional edition of AOMEI Partition Assistant.

Step1. Install and start AOMEI Partition Assistant. Right click C drive and select Merge Partitions.

Merge Partitions

Step2. Check the unallocated space.

Check unallocated space

Step3. Verify the virtual result, and click Apply.


You cannot use Fdisk in Windows 7 any more, but you can achieve the same goal with other similar Fdisk tools. Technology is improving to better fit our life. When there is no Fdisk for Windows 7, you have to let it go and learn something new. This more advanced partition manager AOMEI Partition Assistant allows you to transfer OS to new hard drive as well as to make bootable CD for unexpected failure. Feel free to download it and learn more.