I have ubuntu 18.04 currently on my pc and some important docs on it. I want to install windows alongside my ubuntu.
as you know, to install windows we need a primary NTFS Partition for and first, we should unmount a part of the hard drive in order to install windows on it,
but I have a single partition. In case of a single partition, the Ubuntu system files will exist on this single partition and While you are operating Ubuntu, the system files will be in use. Thus, the Disk volume will be busy and A busy disk volume cannot be unmounted so The system cannot resize a mounted or busy disk.
Thus, we need some external factor to boot from and resize the single partition on which Ubuntu Operating System exists. after searching on the internet, For the purpose, I boot the computer from bootable Ubuntu Flash Drive and use GParted utility. but still, I can't resize the current partition and it is locked.
can anybody help me and had a good experience with this problem?
gparted
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