Although troubleshooting a Windows 10 machine that won’t boot can be difficult, there are certain measures you can take to try to perhaps fix the problem:
Enter Safe Mode via Booting:
Press the F8 key (or Shift + F8) continually while your computer is booting up after restarting it.
The Advanced Boot Options menu ought to appear as a result.
From the options, choose “Safe Mode” and hit Enter.
You can try to identify and resolve the problem once you’re in Safe Mode.
Employ Autonomous Repair:
Windows 10 will start the Automatic Repair tool automatically if your computer keeps failing to boot up.
Permit Windows to make an automated repair attempt.
Start Windows 10 from a USB or DVD, choose “Repair your computer” > “Troubleshoot” > “Advanced options” > “Startup Repair” to manually start Automatic Repair if it doesn’t start.
Verify the Disk for Errors:
Start Windows 10 from a USB drive or DVD.
Choose “Repair your computer” > “Troubleshoot” > “Advanced options” > “Command Prompt” .
Type chkdsk C: /f /r into the Command Prompt and hit Enter.
This command will look for issues on your main disk and try to correct them.
Fix the Boot Configuration Data (BCD) and Master Boot Record (MBR):
Start Windows 10 from a USB drive or DVD.
Choose “Repair your computer” > “Troubleshoot” > “Advanced options” > “Command Prompt” .
Enter each of the following commands as you type them, one after the other:
smash
Copy the code for the bootrec /fixmbr, bootrec /fixboot, scanos, bootrec, and rebuildbcd.
The MBR and BCD, which are necessary for Windows to boot, will be fixed by these commands.
Apply System Restore:
You might try using System Restore to return your system to a previous state if the boot problem was caused by newly installed drivers or applications.
Start Windows 10 from a USB drive or DVD.
Choose “Repair your computer” > “Troubleshoot” > “Advanced options” > “System Restore” .
To return your system to a previous restore point, simply follow the instructions.
Examine the connections on the hardware:
Make sure all of the cords, particularly the data and power cables, are firmly attached to your computer’s hardware, including the hard drive, SSD, and RAM.
Make that the new hardware, such as RAM or a hard drive, is installed correctly if you recently installed it.
Examine the hardware components:
You can do diagnostic checks if you think there might be a hardware problem, like a failing hard drive or RAM.
Diagnostic tools that you may boot into from a USB drive or DVD are offered by many manufacturers.
An alternative is to make use of Windows’ built-in diagnostics:
Start Windows 10 from a USB drive or DVD.
Choose “Repair your computer” > “Troubleshoot” > “Advanced options” > “Command Prompt” .
To search for and fix system files, type sfc /scannow into the Command Prompt and hit Enter.
Memory diagnostics can also be performed by typing mdsched.exe and hitting Enter.
Carry Out a Windows 10 Clean Installation:
Should everything else fail and you still can’t resolve the boot issue, you could have to undertake a fresh Windows 10 install.
Start Windows 10 from a USB drive or DVD.
To install Windows 10, simply follow the instructions, being sure to select the option to make a clean installation (which will format your drive).
Before undertaking any significant troubleshooting procedures, especially if you’re thinking about reinstalling Windows, don’t forget to make a backup copy of your vital files. Furthermore, it could be better to get help from a professional or someone with more experience with computers if you’re unsure about any of these methods.