Make sure the primary drive containing the NT Loader files, where you have installed your Windows OS, is at the top in the priority list.

Use the arrow keys to go to System Configuration > Boot Options (keyboard instructions at the bottom of the BIOS/UEFI screen). If you can’t remove external drives or removing them is not working, you can change the boot order from the BIOS/UEFI. Removing external drives will force it to look at the primary drive where it should find NTLDR and boot correctly. External hard disks, pen drives, and CDs, especially because the system might be trying to load from an external drive where boot files are not located. Some accessory might be hindering with the boot process. If you are using a laptop, remove mouse and keyboard too. Remove all external accessories and peripherals that you don’t need to boot your computer, except keyboard and mouse. Press Ctrl+Alt+Del keys to restart, and if that doesn’t work, press and hold the power button until the system shuts down. Try rebooting your computer once to check if that works. The following solutions should work in all three conditions. Reasons could vary from configuration error, corrupt HDD/SSD, and more. The ‘NTLDR is missing’ error appears when, during the boot process, the system is unable to read/write data to any one of these three important files that are crucial for booting the Windows OS.

Boot: Couldn’t find NTLDR Please insert another disk.

NTLDR is missing Press any key to restart.

NTLDR is missing Press Ctrl+Alt+Del to restart.

Here are three common errors that users see: ‘NTLDR is missing’ is not the only error you may receive when dealing with this problem.

boot.ini containing the system configuration details.

COM (also sometimes called NTDETECT.COM) that detects hardware required for booting an NT-based OS like Windows 10.It is responsible for booting all Windows NT OS, including Windows 10. NTLDR stands for NT Loader, which is also the boot loader, located usually in the primary HDD/SSD.

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