Can't boot after installing ubunto with windows 10 : <p>I have asus computer with uefi mode and windows 10 installed on.</p>

<p>I istalled ubuntu 16 with custom installation and then i can.t run both systems. There is no boot file. </p>

<p>I have this message when booting the computer: reboot and select proper boot device or insert boot media in selected boot device and press a key</p>

<p>What i have to do? I don't want to loose my files on windowd 10.</p>
