In fact you may use this freeware to free convert any free space from a volume to unallocated space and then add the space to another drive on the same disk. This following video set an example that you may convert free space from d drive to unallocated space and then add the unallocated space to c boot drive. How to change free space to unallocated space on D partition You can write any data to free space on Windows 10 and the free space will become less and less when more and more data is written to it. Usually, unallocated space does not have a drive letter and it shows as unknown device or unallocated partition under Windows 10 Disk Management.įree space refers to the disk space which contains no data. Unallocated space usually refers to the disk space that has not been formatted, so it does not have a regularly file system and you cannot write any data to it. Well, both unallocated space and free space refer to the disk space that has not been used. Differences between unallocated space and free space Is it possible to make unallocated space in disk management?įree space vs unallocated space and its conversion will be shared on this article with freeware or free methods to turn unallocated space into available space on Windows 10, or make free space to unallocated or convert unallocated space to fat32/ntfs.How do I convert free space to unallocated space?." Can I convert unallocated space to free space on Windows 10 for free?".