Windows 7 is a very reliable operating system, but there are problems with it. When a computer running this OS refuses to boot, it may be necessary to restore the boot sector of the HDD, from which the entire system is initialized and started.
If the problem is not related to user actions, as a rule, the built-in Windows 7 diagnostic tools will be able to solve the problem on their own, just wait for the reboot after an unsuccessful start, in which you will be prompted to boot into the system recovery tool and select the option of self-fix there.
But, unfortunately, this tool does not always help, in rare cases it may turn out to be useless and you will have to work with your hands. In order to put the computer in order (if you prefer to call the wizard in such cases, I do not advise you to read further), you will need to perform several simple steps. Also, manual recovery of the boot sector of windows 7 will be necessary for those who install Windows XP on a computer on which Windows 7 is already installed, since WinXP boot record (MBR) erases the data that seven entered in the MBR. After such an experiment, you will only have XP loaded, and Win7 will simply not be among the OS selection options. But in this case, it is easier to turn to the EasyBCD utility, a description of which can be found on the network.
So, if you encounter the problems described at the beginning of this material, calm down first, nothing bad happened and everything can be fixed, since restoring the boot sector for a modern operating system is a regular procedure.
Your actions will differ depending on what exactly led to the inability to boot into the "seven".
If you installed WinXP on top of Win7, then you should download EasyBCD. By launching it in XP, you can restore the bootloader in a few simple steps and return it to the Windows 7 boot list.
If, for example, you installed Windows XP on top of Windows 7 and booted through EasyBCD, and then, for some reason, decided to demolish the XP partition on the CDD, then you have a more difficult situation. By deleting XP, you also deleted EasyBCD, which means that now the computer does not know how to load at least some OS to it.
To restore the boot sector of Windows 7, you will have to remember where you have the Win7 recovery disk (of course you created it, right?) Or, if the answer is no, then we are looking for the operating system installation disk . It doesn’t matter what you find, that is, insert it into the drive. Now you need to boot from the disk, and enter the "System Restore" section. Using the Bootrec.exe utility, which is available on the installation disk and the recovery seven disk, restoring the boot sector of Win7 will not take much time.
When you select "System Restore", after a short wait you will have options, most likely, it will be possible to restore only one OS - Windows 7. On the next screen below, you will see the "Command Prompt" option, click on it and a window will open, in which will need to type several teams.
First you need to check whether everything is fine with the Bootrec utility. To do this, enter the bootrec command in the console and press the Enter key. Next, each command will need to be completed by pressing this key. A text appears describing the features of the utility.
In order to start the recovery of the boot sector, we type the command
bootrec / fixmbr
If in response the computer writes that “Operation completed successfully” then everything is in order and the bootloader has been overwritten. You can go to the second part, type the command
bootrec / fixboot
After you press enter, the computer will form a new boot sector, you can now type the command
Exit
After all these manipulations, you can restart the computer and enjoy the normal operation of your OS.
As you have seen, restoring the boot sector of the Windows 7 operating system is really a very simple procedure.