Ubuntu – How to prevent Windows 10 from corrupting the ext4 superblock every time

I have a pc with dual-boot Ubuntu/Windows since more than 5 years.
The last working configuration was : windows 10 and Ubuntu 16.04 LTS.

I install Ubuntu 16.10 on the Linux partition and have some problems:

• If I only boot on Linux, no problems, it works fine.
• If I boot windows, no problem, windows works fine.
• If I boot Linux after windows, I have a superblock error and drop to busybox.

If I restore the superblock with

fsck.ext4 -p -b 884736 -B 4096 /dev/sda5

I can boot Linux but after another boot to Windows the same problems reoccurs.

Of course I have tried solutions found:

• chkdsk and testdisk while on windows.
• I remove the extended partition and let the Linux installer recreate them.
• Create by and, the extended partion + ext4 and swap and select these partition during the install process.

The partition table (fdisk -lu):

Disk /dev/sda: 298,1 GiB, 320072933376 bytes, 625142448 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x6bb7527c

Device     Boot     Start       End   Sectors   Size Id Type
/dev/sda1            2048  22783999  22781952  10,9G  7 HPFS/NTFS/exFAT
/dev/sda2  *     22784000  22988799    204800   100M  7 HPFS/NTFS/exFAT
/dev/sda3        22988800 375246847 352258048   168G  7 HPFS/NTFS/exFAT
/dev/sda4       375246848 625141759 249894912 119,2G  f W95 Ext'd (LBA)
/dev/sda5       383440896 617844735 234403840 111,8G 83 Linux
/dev/sda6       617846784 625141759   7294976   3,5G 82 Linux swap / Solaris

I did some more tests without success:

• I removed the Linux extended partition
• I extended the windows partition to the full disk
• I launched a chkdsk /F /R on this new windows partition → after a couple of hours all is good
• I reinstalled Ubuntu 16.10 and let the install program resize the disk and create the ext4 and swap part.
• I boot Linux → no problem
• I boot windows → no problem (I reach the windows menu that let me choose between Windows and Linux, I choose Windows)
• I boot Linux: same problem again (superblock error)

Update :
the exact superblock error :

fsck.ext4: Superblock checksum does not match superblock while trying to open /dev/sda5

To repair it :

fsck.ext4 -p -b 884736 -B 4096 /dev/sda5

works fine, but after a Windows boot, the problem is there again …

Update 2 :
From W10, I can mount the linux ext4 partition with the W10 ext2 tool. It works fine, I can see the files. But after that, same problem, when I boot on Linux: superblock errors.

Of course if I just boot W10 (no login) and reboot linux, the problem is there too.

The problem was present with W10 1511, I've upgraded to W10 1607 : same problem

I saw that I was not alone on earth with this problem, but I did not see any solution.

update2 :
I removed the linux and swap partition and create a new partition from windows.
Then I reinstalled Ubuntu 16.10 => same problem again

update 3: The beginning of solution
I have perhaps found a solution.
When loggued in windows :
With the command diskpart, when the linux volume is set offline
there is no more problem when I boot linux.

I now have to find how to set the volume offline automaticaly (regedit ?)