[Nottingham] Acer Espire ES1-132 Boot problem

[Clive]

Happy New Year Everyone

I have just got an Acer Aspire ES1-132 with Windows 10, I tried Linux 
Mint 18.3 from a USB stick it worked very well, everything just worked. 
Installed, with replace Windows 10 (not enough disc space to dual boot). 
Now when booting all I get is "no boot media" on screen after the Acer 
logo, I did choose to not use the Windows boot manager during the install.

I have tried a few answers on forums that I have found with internet 
searches, but none of them work,

Please can anyone help?

Thank you

Clive