I have a dual boot PC (Ubuntu & Windows 10). Since a couple of days ago, I can't log into windows 10. The logo screen is displayed, but it never reaches the login screen. It goes dark after a couple of seconds.
Have you added the /r to chkdsk? Since you cannot enter recovery mode I suggest the following launch and setup cd of windows and enter the troubleshooter and try to recover it if not you can always reinstall windows without formatting on the same drive if there are sensitive data that needs to be recovered and then perform a fresh clean installation of windows . Alternative method which I do not recommend is set up a fresh copy of windows on a VM and export the Registry key to a USB and use copycon to replace the newly exported key with the corrupted one from command line .