How do I fix a computer that says “operating system not found” when booting?

May 22, 2015 at 10:33PM: Kenneth asks: When I boot my Acer TravelMate P643M with Phoenix bios I get the message “operating system not found”. Pressing CTRL+ALT+DEL reboots the computer. I can’t change the boot priority. I have tried removing my CMOS battery but it doesn’t change anything. Bruce’s reply: Depending on the BIOS used by the system, the error […]

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