Hi,

I have an Acer Aspire V5-571G with native Windows OS and UEFI based.
I installed (in UEFI mode) Ubuntu 16.04 on a 50GB partition without having problems.
For university studies I want install also Kali Linux distribution on another partition of 50GB.

So I downloaded the Kali 2016.2 (64bit) iso, created a bootable flash drive using Rufus 2.11 and I inserted EFI folder inside installation media and installed Kali. The installation goes well and when I turn on my pc ubuntu grub shows up, I choose Kali and everything seem goes well but as soon as I turn off Kali, I startup Windows 10 and again reboot Kali I get a black screen with a message that speaks of "bad superblock" and "initramfs" prompt.

I post the output of
Code:
sudo parted -l
done with Ubuntu:

Code:
Modello: ATA Hitachi HTS54505 (scsi)
Disco /dev/sda: 500GB
Dimensione del settore (logica/fisica): 512B/4096B
Tabella delle partizioni: gpt
Flag del disco: 

Numero  Inizio  Fine   Dimensione  File system         Nome                          Flag
 1      1049kB  420MB  419MB       ntfs            Basic data     partition          nascosta, diag
 2      420MB   735MB  315MB       fat32           EFI system     partition          avvio, esp
 3      735MB   869MB  134MB                       Microsoft reserved     partition  msftres
 4      869MB   391GB  390GB       ntfs            Basic data     partition          msftdata
10      391GB   407GB  16,0GB      ext4
11      407GB   437GB  30,0GB      ext4
12      437GB   441GB  4000MB      linux-swap(v1)
 8      445GB   450GB  5369MB      linux-swap(v1)
 9      450GB   498GB  48,3GB      ext4
 5      498GB   499GB  472MB           ntfs                                          nascosta, diag
 6      499GB   500GB  862MB           ntfs                                          nascosta, diag
 7      500GB   500GB  367MB           ntfs                                          nascosta, diag
and the output of
Code:
sudo lsblk -f
:

Code:
NAME    FSTYPE LABEL    UUID                                 MOUNTPOINT
sda                                                          
├─sda1  ntfs   Recovery F062B6F062B6BAA4                     
├─sda2  vfat   ESP      8CB7-6EC8                            /boot/efi
├─sda3                                                       
├─sda4  ntfs            E8D6D4B2D6D4826C                     
├─sda5  ntfs            01D23C684BE7E640                     
├─sda6  ntfs            01D23C68406434E0                     
├─sda7  ntfs            01D23C68370893A0                     
├─sda8  swap            55b07e7e-4b1e-408a-8e46-50f62df80818 [SWAP]
├─sda9  ext4            aa0e7d10-eea1-446e-8496-157d4cb91a3a /
├─sda10 ext4            5b38c20e-f6c1-4d20-81cc-62cd83807697 
├─sda11 ext4            d72e10dd-bd12-4eb8-9196-3cd7e11d8373 
└─sda12 swap            8ceea500-fbe7-4631-9f53-1be6a729d5cd [SWAP]
sr0