This is not a duplicate of How can I dual-boot Windows 10 and Ubuntu on a UEFI HP notebook? because I have Ubuntu installed already while the other post asks about having Windows installed first.

I currently have Ubuntu 16.04.2 installed on my laptop, and I would like to dual-boot with Windows. How would I go about doing that? If it helps, here is a screenshot of my hard drive listed in Disks.

1.0 TB Disk -- /dev/nvme0n1

P.S. I won't have my copy of Windows until later today, so I may not respond immediately.

marked as duplicate by karel, Eric Carvalho, pomsky, Zanna, Elder Geek Jan 22 '18 at 23:42

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

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    If you have the chance its, in general, easier to install Windows first and then Ubuntu. – M. Becerra Jan 22 '18 at 13:40
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    @M.Becerra: not necessarily for an UEFI system – Takkat Jan 22 '18 at 13:43
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    @M.Becerra Yes I know that, but I would rather not have to re-install Ubuntu. – Curtice Gough Jan 22 '18 at 13:48
  • The above considers UEFI installation, the one you should have done from the start with Ubuntu (also the recommended mode for any Windows 8 or newer). But instead you installed Ubuntu in Legacy mode. It will be much easier to install both in the recommended method. As it is now you'll have an hard time making room for Windows and then reinstalling Grub. – user692175 Jan 22 '18 at 13:54