Boot Kali from USB, shrink the partition where you have Kali and create an NTFS partition in the resulting free space. Then boot from a Windows USB installer and start installing it.

How do I install Windows 10 after Kali Linux?

1 Answer

1. Open GParted and resize your linux partition(s) in order to have at least 20Gb of free space.
2. Boot on the Windows installation DVD/USB and select “Unallocated space” to not override your linux partition(s).
3. Finally you have to boot on a Linux live DVD/USB to re-install Grub (the boot loader) as explained here.

How do I switch from Kali Linux to Windows?

More Information

1. Remove native, swap, and boot partitions used by Linux: Start your computer with the Linux setup floppy disk, type fdisk at the command prompt, and then press ENTER. …
2. Install Windows. Follow the installation instructions for the Windows operating system you want to install on your computer.