Your problem seems to be the result of booting failure. There are multiple reasons for the occurrence of such issues.
The possible reasons for the error message could arise because of
1. Changed or damaged BOOT order
2. Loose cables or damaged cabling
3. Failed hard disk
4. Corrupted system files.
5. Newly added hardware
Try the following methods one by one.
1. Check out the order of the Boot Options under your BIOS setup. You will need to set the Boot order to HDD. It is quite simple to do it. Restart your computer and keep pressing F2 key to enter into the BIOS mode ( the key can be different for your model. Refer to your computer documentation). Now check for CMOS settings. The sequence needs to be CD/DVD, Hard Drive and other. If it is not, change it to the proper sequence. Save settings and reboot your PC. Check if the issue is solved.
The key to get to the BIOS can be anyone from the following - ESC, DEL, F2, F8, F10 or F12.
2. Check the cabling. Loose or damaged cables can cause the non working boot up. If the IDE cable has come loose, it can be a cause for such errors. Power off everything. Open the computer case. Check all the cables. Check the end connected to your motherboard. Close the covers and check if the issue is resolved. The cable itself might have been damaged. Change the same and check if the issue gets solved.
3. Another reason for the disc boot failure could be the damaged drive itself. You can format or recover the disc to check if it resolves the problem. However, please note that if the disc boot issues are not solved by the above methods, it is most unlikely to be solved with the formatting option. You may need to opt for disc replacement.
4. Corrupted system files can be a cause for disc boot failure. The boot sector area of your computer's system area may have been damaged or corrupted. Restore the boot sector in such a case. Please let the technician do it for you if you are not comfortable handling it yourself.
5. Some newly added hardware can cause the issues by changing the boot order. Please check if any new hardware has been added recently. If any hardware has been added, remove it ( Please do not just disconnect it, but properly uninstall the device from your system), Check if it resolves your issue. If it does, the hardware might have an issue. Check for proper installation instructions.
6. Use the CHKDSK command for checking if the hard disc has any problems.
Live....and Let Live!
