The good news is that you are still able to repair Windows 10 without losing data through Recoverit Windows Recovery. Sometimes, it can't diagnose the problems and get them fixed. The simple steps can help you repair Windows 10 without a CD regarding the startup issues. Wait for a few minutes, and Windows 10 will fix the startup problem.Go to Troubleshoot > Advanced options > Startup Repair.Launch the Windows 10 Advanced Startup Options menu by pressing F11.Here are the steps provided for each of you. If it happens, you are capable of fixing the Windows 10 startup problems via the native Windows 10 repair tool - Startup Repair. Your Windows 10 computer may not be started up due to damaged BCD (Boot Configuration Data) settings, blue screen of death, and more. Create Windows 10 Recovery USB (Reboot & Recover Windows 10)
In this article, seven ways of troubleshooting Windows 10 without CD are provided.