Software & Apps › Windows Fixmbr Command (Recovery Console) How to Use the Fixmbr Command in the Windows XP Recovery Console Share Pin Email Print Windows The Ultimate Laptop Buying Guide By Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated May 21, 2019 The fixmbr command is a Recovery Console command that writes a new master boot record to the hard disk drive that you specify. Fixmbr Command Availability The fixmbr command is only available from within the Recovery Console in Windows 2000 and Windows XP. Fixmbr Command Syntax fixmbr device_name device_name = This is where you designate the exact drive location that a master boot record will be written to. If no device is specified, the master boot record will be written to the primary boot drive. Fixmbr Command Examples fixmbr \Device\HardDisk0 In the above example, the master boot record is written to the drive located at \Device\HardDisk0. fixmbr In this example, the master boot record is written to the device that your primary system is loaded onto. If you have a single installation of Windows installed, which is normally the case, running the fixmbr command in this way is usually the right way to go. Fixmbr Related Commands The bootcfg, fixboot, and diskpart commands are often used with the fixmbr command.