Why did your computer freeze?

You were working on your computer and everything suddenly froze without any error message. During the reboot of the computer, this message appeared: “Boot device not available.” What is the most likely cause of this message?

A) The hard drive is fragmented

B) The BIOS configuration is incorrect

C) The hard drive is faulty

D) The video driver is corrupted

E) The computer is very, very tired and needs a short nap

The answer: C) The hard drive is faulty

If your boot device isn’t available, then something has gone drastically wrong with your hard drive.

Want to know more? Watch “Dealing with Errors.”

Errors with the boot sector or operating system boot files create massive problems for CompTIA A+ certified professionals. In this video, we’ll discuss boot sector errors (invalid partition tables, operating system not found), operating system boot file problems (NTLDR is missing), and application startup problems.