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When a user upgrades to the newest build of Windows 10 using an option provided by Windows 10 installer, it upgrades or migrates all files/applications/drivers and many more.
Another reason is upgrading from the previous version of Windows to Windows 10. Third would be connected peripheral devices which don’t fit properly with the newer version of Windows 10 after the Windows update, and that mixes up with already running OS and causes such issue. Second reason would-be third-party application recently installed/updated device drivers. However, there are situations were newly installed Windows Update doesn’t get installed correctly, or conflict between any third-party applications causes a breakdown Most of us are aware that Microsoft deploys updates to keep the OS up to date. The first and foremost reason for this problem is the recently installed Windows Update. If no hard drive issues are found then the hard drive is physically fine, meaning the cause of your problem must be with Windows, in which case the next step will solve the problem. After replacing the hard drive, you'll need to perform a new installation of Windows. Replace your hard drive if your tests show an issue. A hard drive that can't read and write information properly can't load the files necessary for Windows to start.
A physical problem with your hard drive is certainly a reason why Windows might not start fully. Free hard drive testing programs make this easy. It may be that one of the below solutions is necessary to fix your problem but if you haven't been diligent in your troubleshooting up to this point, you can't know for sure that one of the easier solutions above isn't the right one. Steps 11 and 12 both involve more difficult and destructive solutions to Windows not starting fully. Make sure you've tried your best to complete the troubleshooting steps up to this one.