Compaq presario notebook f763nr has error message "Operating system not found"

HI There,

Unless someone has gone into what is called your BIOS and disabled your hard drive as a recognizable device, your message most likely means that the WIndows System on it is corrupted enough (maybe virus) that the "boot sector" of that system can't be seen by the computer and it could also mean that your hard drive is ruined.

This isn't a problem you can just find a quick fix for. My first concern, if I were you, would be important data you needed to retrieve. In that case you would hope that someone can put your hard drive in an external enclosure, and just get the data files off it.

If you have a Recovery Disc of any kind for your Compaq, you could insert it and start from that disk and it might repair and restore the files that are needed to see the Windows system and start the laptop again.

It's very hard to say exactly from a distance with what you've told us.

Best Regards,

TheSelkie