Restore Windows 7 Boot Loader - via the command line and other techniques

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Windows 7 has a wide popularity among users

CONTENT

  • 1 The main causes of problems with the boot loader of Windows 7
  • 2 How to restore the Windows 7 boot loader automatic system means
  • 3 System Restore in Windows 7 command prompt
  • 4 Startup Repair "windose 7" using Hiren's BootCD
  • 5 How to ensure the safety of the loader after a system restore

The main causes of problems with the boot loader of Windows 7

Fly off the boot loader can without any apparent reason. It is there are memory errors, and error reading and writing to disk.

It looks like a black screen error

Since the bootloader is just a special software, placed on hard driveThen it is prone to crashes and errors - just like any other file. Including after virus attacks.

How to restore the Windows 7 boot loader automatic system means

The Windows operating system is very prudent in terms of restoring own health. However, in order to restore the loader, still need external media, Which is the installation version of the OS. On top, it is still, and should have the same version and capacity. In fact, from the media and we have to be loaded as the primary boot loader already does not help us. Used as a carrier can be a disk or flash drive. Before you run Startup Repair Startup Windows 7, we need you to specify which media to boot it. This can be done in the BIOS. In different versions of the BIOS may be responsible for this different items.

One option in the BIOS boot priority

Search need something like Hard Disk Priority, Boot Selector, Boot Device Priority or similar names. To recover the system from a bootable disc Windows 7, You need to set the first priority of the boot disk from which are going to be loaded, save your changes and reboot your computer. Regardless of the type of carrier recovery method of the same.

After booting from the disk will appear in front of us Windows 7 setup menu.

Instead of selecting selects the recovery

But we do not need it. We need to select "System Restore." In the English version of Windows 7, this item is called System Recovery. What it is? This set of measures to restore the system operability. The next window asks you to select an operating system installed, which help is needed. If more than one, choose the one that is needed. Click "Next". Then we will be asked to choose a method of recovering in the "System Recovery Options".

As you can see, is quite wide range of tools

In the English version of Windows 7, it is called the System Recovery Options. What to do next? For starters, you can try to automatically start recovery. The program itself will conduct all necessary operations, try to find out the reasons for the lack of load and remove them yourself. If successful, the system will reboot. If it does not work, we will try other ways.

System Restore in Windows 7 command prompt

To recover the launch of Windows 7 on the command line, we will have all the same to boot from the installation disk. Only now have to not choose to automatically install, and click "Command Prompt". There are two full-time recovery tools you can use: Bootres and BCDBoot. We will understand each.

MBR Windows 7 Recovery using Bootrec

MBR stands for Master Boot Record. That is - the master boot record. If not to go into the jungle, it contains basic information about where the computer is necessary to address further after all BIOS procedures. MBR of loading the boot loader, which means that if the MBR is damaged, and the loader to the case does not reach. Restore Windows 7 Boot Loader from the command line can be performed using a simple Bootrec utility.

What are the basic commands

Running the utility itself occurs through Bootrec command input from the command line. But it needs to be run with the keys, causing certain functions of the program. It looks like this: Bootrec / FixBoot. You can use the following keys:

  • FixMBR. The system partition is written the master boot record. It will be compatible with Windows 7 and Vista;
  • FixBoot. Overwrites the boot sector as a whole. This command is necessary when it is damaged or has been overwritten by a different version of the operating system, for example, Windows XP;
  • ScanOs. Scanning all the present operating systems;
  • RebuildBCD. Almost the same thing as ScanOs, only here you can change the data in the record store.

When using the latter point - RebuildBCD - error "Unable to find the requested system device" can occur. In 99% of cases this is due to the difference in the discharge of the installed system and boot disk.

The utility can only correct itself the master boot record and boot sectors. However, if the boot loader file is physically damaged or non-existent, you have to use a different approach. For example, a utility BCDBoot. But about it later.

Sequencing

So, a bit of theory we have, you can begin to remedy the MBR. At the command prompt, which we were using a boot disk or a flash drive to restore "windose 7", you need to enter a couple of commands with the keys.

Solving problems using Bootrec

They will create a new master boot record and the new boot sector. It begins with Bootrec, followed by a slash entered the first key - fixmbr, fixboot and beyond. In Windows 7, it will look like this:

  • bootrec / fixmbr (press Enter);
  • bootrec / fixboot (press Enter).

Then you have to reboot. The idea is that now the system will boot. If does not work, try the following method.

Recovery "Vindovs 7" via the command line utilities via BCDBoot

BCDBoot utility can restore the entire operating system boot environment - data files configuration repository to download and, actually, bootmgr file, our loader. The command to invoke the procedure is as follows: bcdboot.exe c: \ windows. Pretty simple way to recovery download Windows 7 from the command line.

Startup Repair "windose 7" using Hiren's BootCD

Hiren's BootCD - a real multitool for the system administrator. This image contains a large collection of software for diagnostics, repair and operating systems, and scanning hard drives.

One of the boot options Hiren's BootCD

Hiren's can be loaded regardless of the OS, so you can recover Windows 7 system with a bootable USB drive. List of software, which is included in the assembly, is huge. But we consider only a couple of tools that can help to restore the bootloader.

How to restore the launch of Windows 7 using Paragon Hard Disk Manager

Paragon Hard Disk Manager - a set of programs for testing and troubleshooting on hard drives. To find this complex in the Hiren's BootCD, you need to move to run DOS programs, and then in the "breakdown of discs" for the English version - Disk Partition Tools.

Main menu Hiren's in the Russian version

Subsection "Breakdown disks"

Paragon Hard Disk Manager is fourth on the list

In the main window of the program in the menu bar you need to go to the "Master" and find the item "Recovery boot Windows».

The wizard will offer several options, among which we are interested in "Search installed versions of Windows». Push the "Next", and after scanning and finding installed OS offer master change partition boot record. Hit "Next". It remains only to restart the computer, what to say and the last wizard.

How to restore the boot sector of Windows 7 utility MbrFix

To use a small utility MbrFix, we will have to boot into the Live CD-system present in the assembly of Hiren's BootCD. In version 15.2 it is called Mini Windows XP.

After loading the system go to Start menu and call HBCD. In it are looking for the section Partition / Boot / MBR, then Commandline further MbrFix. Immediately start the console with the command pattern. To recover boot Windows 7 operating system, the general command should look something like this: MbrFix.exe / drive 0 fixmbr / win7 / yes. Press Enter and go to the boot.

How to ensure the safety of the loader after a system restore

Actually, no tricky science in ensuring the safety of the loader is not. Rules are the same as for the entire system as a whole. For the PC it is necessary to monitor and maintain.

It is advisable to install on your PC is one of the reliable and proven antivirus

Loader - this is the same file, like everyone else, so it can be susceptible to virus attacks. This means that a reliable antivirus software must be installed on the system. In addition, we have to somehow protect the image from physical damage. For example, sudden disconnection of electricity from a PC could easily compromise the integrity of both the loader, and boot record. Therefore, with frequent blackouts better to get an uninterruptible power supply.