Hello,
I received the "Missing Operating System" in my laptop running Windows 7 Ultimate. After doing some online research, I realized my USB flash drive, which I had forgotten to remove last night, was interfering with the start-up. I removed the flash drive by simply pulling it out of the USB port, and then starting my laptop. It immediately went to my home screen and I released a huge sigh of relief. Problem solved.
It seems the laptop recognizes the flash drive but, since the flash drive has no operating system, the "No operating system" is the message I received.
I received the "Missing Operating System" in my laptop running Windows 7 Ultimate. After doing some online research, I realized my USB flash drive, which I had forgotten to remove last night, was interfering with the start-up. I removed the flash drive by simply pulling it out of the USB port, and then starting my laptop. It immediately went to my home screen and I released a huge sigh of relief. Problem solved.
It seems the laptop recognizes the flash drive but, since the flash drive has no operating system, the "No operating system" is the message I received.