How to Fix Windows 7 Bootloader Problems

If your computer is failing to load the operating system during startup, the problem might be a corrupt Windows 7 bootloader. The startup problem may occur due to various reasons like damaged or replaced Windows 7 boot sector or an earlier Windows operating system has been installed after windows 7 was installed. This can easily be fixed using command line utility. Follow the given steps to fix this problem.

If you want to fix bootmgr error in windows 7, then follow this article-How to Resolve Windows 7 BOOTMGR Missing Error

Step1: Insert Windows 7 setup DVD in the optical drive and restart your computer. Press any key when prompted.

Step2: Click the option “Repair your computer”.

Step3: After scanning, select Windows 7 as the installation type and then click “Next”.

Step4: Click on the “Command Prompt” option on the “System Recovery Options” window.

Step5: Type “bootrec.exe /FixBoot” (without quotes) and press “Enter” to repair the Windows 7 bootloader. This command writes a new boot sector to the system partition by using a boot sector, which is compatible with Windows 7 or Vista.

Step6: After repairing the bootloader, restart your computer if prompted.

See also: How to Install Windows 7 from USB
                How to Make Bootable Disks in Windows 7