How to change the boot drive in Windows.

Get the Recovery Console back in Windows 7.

Fixing Bootmgr is missing error in Windows.

Use Bootrec.exe in the Windows RE to troubleshoot startup issues.

Restart the PC to find out if the repair was successful.

Select (a) for all during the prompt, or add installations individually instead. Windows should pick up the installed operating system.

If it finds additional installations, prompts you to add them to the BCD Store.

bootrec /rebuildbcd - This options scans all connected hard drives for Windows installations.

Fixes damaged boot sectors, non-standard boot sectors, and issues caused by the installation of earlier Windows operating systems (pre-Vista).

bootrec /fixboot - This options writes a new boot sector to the system partition.

It fixes MBR corruption and issues with non-standard MBR code.

bootrec /fixmbr - This option writes a MBR to the system partition but does not overwrite the system partition in the process.

Run the following commands one after the other:.

When the 'choose an option' menu opens, select Troubleshoot.

Select Repair your computer on the next screen.

That screen should highlight the installation language and keyboard.

Click next on the first screen of setup.

Change the boot order so that the computer boots from the USB or DVD drive before it boots from internal hard drives.

Find out how to access the BIOS/UEFI of the machine.

Connect the USB Flash Drive to the computer or put the DVD into the DVD drive.

Insert the installation media into the PC.

Windows 10 users can download media from Microsoft instead. If you do have Windows installation media, you can use it to boot from and access the recovery options. The BCD holds important boot-related information including the list of the available operating systems.

BCD file corruption or misconfiguration.īoot Configuration Data (BCD) was introduced in Windows Vista by Microsoft.

Bluescreen or other errors that require a restart.

The error can be a result of (among other reasons): One common denominator is that the Recovery screen references the file ootcd.

A recent hardware or software change might be the cause. The Boot Configuration Data file doesn't contain valid information for an operating system. There was a problem with a device connected to your PC.The Boot Configuration Data for your PC is missing or contains errors

Here is a short list of error messages that Windows may throw during boot: Boot problems related to the BCD come in many different forms.

Fixwin 8.1