Laptop computer shows no operating system

The error message is: There is no operating system or the primary partition is not activated, and the MBR boot record is incorrect.

Solution: First check the connection between the hard disk and the data cable, and it is best to unplug it and clean it up if it doesn't work;

By restoring the default settings of the BIOS, save it, and see if it can be re-entered;

The fastest way is to reinstall the system, if you can determine that it is a registry problem, you can try to restore the registry or fix it;

It can also be used as a USB flash drive boot disk. Then use the new view to see that the 1 partition is not set to active, if not that try to use, fdisk activate:1 1 makes the 1 disk 1 partition set to active.

Then use fdisk mbr to repair it. If the disk partition table is broken, a message "no operating system" will appear.

Or try to use the DOS toolbox to boot (now many ghost system disks have a toolbox, very complete, very easy to use), go to DOS to set the C drive as the main partition and activate it as the active partition (many fdisk settings on the Internet).

The worst outcome is: the hard drive is faulty and has bad sectors. It will be even more troublesome, and the hard disk will be re-detected and repaired, and finally I don't know whether the data in it can be preserved.

Listen to your description, it should be just a system NTLDR and other boot files are missing, have you tried to reinstall, the general computer is not so easy to break, you can try to enter the bios->load default ......Restore the default settings of the BIOS and install the system from the disc to see if that fixes. No, you can post it and see it again, or leave a message on my space.

It's a very simple question, why do you bother to make him so troublesome... Reinstall the system yourself first·· It's better to use a pure system... Installation ·· If it doesn't work... Try more of the ghost of the computer city in the rainforest and the wind of the woods·· Let's see if we can do it... If you've tried it all... Still not working is a hardware problem, most of which are hard disk problems.

If your computer is a serial port hard disk, this kind of problem may occur, this serial compatible ghost disk recovery system will do.

Use a hard disk detection tool to detect the hard disk to see if there are any bad sectors, such as using the efficiency source to detect it, if it is okay, try to restore the registry or repair it. Hope it works for you!