This may include a USB flash drive, an external hard disk, or even a DVD. Fix #2: Disconnect Any Removable DevicesĪs suggested above, there might be a case in which the computer is trying to boot from a device that is attached from an external source via USB. It’s the first instinct to remove the BOOTMGR error. Press Ctrl+Alt+Del keys or any key” to restart your PC. In such a case, you will get the prompt saying, 'BOOTMGR is missing. If it's a virus causing harm to the PC, restarting the system may help. This method does the trick if your computer is displaying an error. 11 Methods to Fix 'BOOTMGR is missing' ErrorĪn error like “BOOTMGR missing' can be resolved with eleven tried and tested methods. The BOOTMGR errors can be easily encountered in PCs running on Windows 11, 10, 7, 8, or Vista operating systems. When the user changes the boot option from an internal hard disk to an external one, the error shows up since the external device is not bootable. In this case, the system tries to boot from a non-bootable device. The boot error can arise when the external drives are not properly configured. Other reasons include hard drive sectors getting corrupted, damaged, loose hard drive connections and/or cables, and old BIOS.Ī user may also encounter a BOOTMGR error in a state where the PC is trying to boot from an external storage device, namely a USB or a flash drive. In some newer versions of Windows, system upgrade problems can also lead to BOOTMGR errors.

The corrupted or default hard drive may also cause this. While there are a couple of reasons for this error, the most common include corrupted or misconfigured data. BOOTMGR is missing Press any key to restart.BOOTMGR is missing Press Ctrl+Alt+Del to restart.

Windows 7 bootmgr is missing fix