If you don't have Windows 10 Installation DVD then click "Advanced Options" from Automatic Repair screen this will allow you to use tool at Windows Recovery Environment (WinRE) environment.
Click Troubleshoot link.
After you click Troubleshoot the Troubleshoot screen appears.
Reset your PC: Reinstall Windows OS using the installation DVD or factory recover image on the hard disk drive but removes all personal data, apps, and settings from the PC.
In Windows 10, Reset your PC gives you two option they are:
Keep My file: Removes apps and setting, but keeps your personal files.
Remove everything: Removes all of your personal files, apps and settings.
Click “Advanced options” on the Troubleshoot screen to access more WinRE recovery utility’s in “Advanced options” screen.
If you have not try below tools.
System Restore : Restores Windows OS to a previous state that was without any system errors.
Automatic Repair (Startup Repair) : Windows will attempt to diagnose and correct common boot problems It corrects issues, such as corrupt registry hives, missing system files and
drivers, disk boot sector corruptions, and other startup issues.
From Windows Recovery Environment start the Command Prompt.
Please type below command into Command Prompt and press Enter key.
Following command will fixes errors on the disk and locates bad sectors and recovers readable information.
Please replace partition letter D: with Windows installed partition letter. When computer boots into Windows Recovery Environment (WinRE) environment the drive letter assign to Windows partition may not be C: drive letter because Windows 7, 8 , 8.1 and 10 creates a separate system partition when it's installed from scratch. The system partition contains boot files WinRE assigns the system partition the C: drive letter and the Windows installed partition will be assign any other drive letter usually D: drive letter is assign to Windows installed partition. The
Bcdedit /enum | find "osdevice" command can be use to find out the drive letter of the Windows installed partition the output of the Bcdedit command is similar to this
osdevice partition=D:. The drive letter after
partition= is the drive letter of the Windows partition.
From Windows Recovery Environment start the Command Prompt.
Please type below command into Command Prompt and press Enter key.
The following command scans integrity of all protected Windows system files and repairs files with problems when possible.
Code:
Sfc /Scannow /OFFBOOTDIR=D:\ /OFFWINDIR=D:\Windows
Please replace partition letter D: with Windows installed partition letter. When computer boots into Windows Recovery Environment (WinRE) environment the drive letter assign to Windows partition may not be C: drive letter because Windows 7, 8 , 8.1 and 10 creates a separate system partition when it's installed from scratch. The system partition contains boot files WinRE assigns the system partition the C: drive letter and the Windows installed partition will be assign any other drive letter usually D: drive letter is assign to Windows installed partition. The
Bcdedit /enum | find "osdevice" command can be use to find out the drive letter of the Windows installed partition the output of the Bcdedit command is similar to this
osdevice partition=D:. The drive letter after
partition= is the drive letter of the Windows partition.
From Windows Recovery Environment start the Command Prompt.
Please type below commands into Command Prompt and press Enter key.
Following commands will repair Master Boot Record (MBR), Boot Sector and BCD Store.
Code:
Bootrec /FixMbr
Bootrec /FixBoot
Bootrec /RebuildBcd
If you can please post a screenshot of above three commands output.
Restart your computer to see boot issue resolved.