Cannot Copy/Paste and Drag/Drop files between Windows and Kali (Virtualbox)

Hello there,
I just installed Kali 2016.2 and the newest version of Virtualbox (5.1.10) on Windows 10.
I did the following :

Code:

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apt-get update
apt-get upgrade
apt-get install virtualbox-guest-x11
reboot

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I activated the Bidirectional option through the VB menu for Copy/paste and Drag n drop.
I can resize the window, but can't copy/paste or drop any file.

This is what I already tried : https://forums.kali.org/showthread.p...ing-Virtualbox

I also tried the following :

Code:

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apt-get install virtualbox-*

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I still can't make it work after hours of testing/rebooting...please can someone help me?
Thanks.


EDIT: using the traditionnal method with the linux headers and the guest addition CD wasn't better. I guess the problem comes from the kernel version : uname -r give 4.6 but apt-get install linux-headers-* only shows 4.8
Is there a simple way to install/update this kernel without having to compile it from the beginning?