Dual Booting Ubuntu Mate 16.04 & Windows 10

Hello everyone I have a question and I'm sure its been asked many times but here goes. I recently installed **Ubuntu mate 16.04** on a machine that also has Windows 10.

When I install Ubuntu it did not give me the option to install alongside of Windows. I created a partition with about **150-GB** of space and installed Ubuntu on that partition, after everything was completed I restarted my machine and it booted straight into Ubuntu.

Although I use Ubuntu on this machine 90% of the time I was thinking it might not be such a big deal fixing this as long as I don't have to uninstall Ubuntu and reinstall it again

Here's my problem, I have to go into my bios and chang the boot sequence in order to boot into Windows.

For **Linux** my Bios is configured with **Legacy** so in oder for me to boot into Ubuntu it's has to be set to Legacy.

For **Windows** my Bios is configured to **UEFI** so in order for me to boot into Windows my bios has to be set to UEFI.

From what I have been reading Ubuntu needs to be installed in the same boot order as Windows correct?

Question, how do I fix this to have the **GRUB** option to choose between **Windows or Ubuntu**,. I dont have the GRUB menu at all.

I was thinking maybe I can use **Grub boot loader repair disk** to fix this but I'm not sure because I never use it before. My system is ruing flawless and I hate to mess things up.

I been reading up on this and as far as I can see you are suppose to install Ubuntu on the same Bios setting as Windows is installed. I found this out after the fact but not sure how to fix it with out messing things up

Thank you for any help with this matter