Many of you have been unable to run your operating system. This translates into termination of the download process and the appearance of an error message. In such cases, users often lose access to safe mode using the F8 key. So, for this reason, I will talk about how to restore MBR in Windows 7 and Vista, because it is the culprit of all the troubles.
People who do not know how to do this usually resort to reinstalling the system. Of course, this will fix the problem, and everything will load for you, but in this case you will have to reinstall and configure all the programs, not to mention that you will again mess with all the drivers. Yes, and there is a risk of losing important data. It is much easier to restore MBR. Windows 7 and Vista provide such a procedure.
As mentioned above, the main cause of the download problem is MBR violation. Now let's talk in more detail about how to restore MBR in Windows 7 or Vista. Take the installation disk or USB flash drive with your operating system. You boot from a particular storage medium in the same way as when installing the OS, select the language and activate the "System Restore" item . As soon as you do this, the search for existing distributions on your hard drive will immediately start. At the end of the process, you will see your installed OS. Select it and press the "Next" button.
After that, a menu consisting of several items will appear. In order to restore MBR in Windows 7 and Vista, we must choose one of the following three points. The rest are of no interest to us. The first is startup recovery, which restores the bootloader of the system, as well as its files. The second is system recovery, which occurs from points assigned by the user or automatically during important changes. Well, the command line, allowing you to carry out the procedure of interest to us manually.
Now in order. Since the first method is the simplest, let's start with it. When you start the first process, diagnostics will begin. After some time, we will see whether it was possible to restore MBR using this method in Windows 7 or Vista. Your problem will either be solved or will remain in the same state.
You can try to recover the second point. Launch it and click "Next." Select the last of all restore points and click Continue again. In the next window, confirm the action with the "Finish" button, having previously agreed with all warnings. Now it remains only to reboot. If this procedure did not bring the desired result, then it is time to move on to the third point.
Run the command prompt and enter a command that looks like this: Bootrec.exe / FixMbr. This will allow Vista and Seven to restore the MBR (Windows XP provides a slightly different procedure). If you want to restore the bootloader then enter Bootrec.exe / FixBoot. If you need to restore the load of several systems, enter Bootrec.exe / RebuildBcd. After each operation, restart the computer. If the problem is not hardware, you should succeed. That’s all for me.