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Short said, would removing the hiberfil.sys file from my Windows 10 partition allow it to boot again after it "got broken" due to conflict with Grub + Ubuntu?

My Windows 10 partition no longer wants to boot, after -I suppose by reading a lot on same issue- it stopped with hibernation or fast startup.

It starts by "preparing auto repair..."

Then always fails on booting, allowing either Restart or advanced options.

From this answer, I see ntfs-3g tool (which I discovered is installed, and a NTFS driver) has a remove_hiberfile option that would delete this file to allow read-write mount of windows partition on Ubutun again. (which is an issue but not my main issue, being, Windows no longer accept to boot at all)

   remove_hiberfile

          When the NTFS volume is hibernated, a read-write mount  is  denied  and  a  read-only

          mount  is forced. One needs either to resume Windows and shutdown it properly, or use

          this option which will remove the Windows hibernation file. Please note,  this  means

          that  the  saved  Windows session will be completely lost. Use this option under your

          own responsibility.

Before applying this solution, and taking more risk at damaging some data, do you think it could solve my broken, no longer booting windows 10?

Here is a little more details.

I have a 1To SSD with dual boot with Grub and split as:

1. Windows 10 (main with +/-800Gb)


2. Ubuntu 18.04.1 (+/-70Gb)

Dual boot used to work well, until windows hibernated, then no longer accept to boot again, possibly due to an intermediate boot on Ubuntu.

Some historic:

• windows did broke when it was on an Intel i7 6700K + motherboard MSI Z170A Gaming


• I only could start on Ubuntu by those steps: [grub (automatically appears)] > [Ubuntu]. If I choosed Windows (or Windows boot manager), Windows failed booting.


• since recent crash of either my motherboard or cpu, I changed to a i7 9700K + motherboard MSI Z390 Gaming carbon pro


• with this new setup, I only can boot Ubuntu after those steps: [boots on windows] > fails with debugging/starting options on a blue screen > [Device] > [Ubuntu]. Difference is, I no longer get on Grub menu by default. When I chose 2nd option from here [Hard drive], it boots saying, please insert boot media.

I try to restore it myself, trying to understand what is wrong, read a lot on same topic, but agree not to be confortable with MBR, EFI, UEFI, boot flag, etc... Some answer are about fast restart and how to disable it, on Windows, which I can't since my windows don't boot.

Here is what GParted says today:

We can see:

• 
  /dev/sda1: some windows required partition I think (récupération == recovery)


• 
  /dev/sda2: an EFI partition which has boot flag


• 
  /dev/sda3: a Windows reserved partition on /dev/sda3, but its filesystem is unknown, and used space (on a 16MB total) cannot be calculated. Looks like broken?


• 
  /dev/sda4: my main windows partition


• 
  /dev/sda[5-6]: Ubuntu