NTLDR is Missing may appear when starting the system. It means that files required to start Windows are inaccessible, missing, or damaged. Therefore, the operating system cannot load. To solve this problem, first ensure that the system can access these files. Then there are some methods to temporarily repair lost or damaged files.

If you see this message when starting your computer, it is the first time Please try the following steps:

1. Restart the system. When the initial Acer logo appears, press the F2 key to enter the BIOS.

2. Use the arrows to locate Boot or Advanced BIOS Feature.

3. Refer to the screen display information to set the first boot device to IDE0, Hard Disk or SATA0.

4. Press F10 to save the settings and restart the system.

At this point the system will boot the computer directly from the built-in hard drive. This avoids USB flash drives or external disks from trying to boot the system.