Follow steps 1 through 5 from the Startup Repair section above to open the . Select Command Prompt from the list of utilities.
file to fix this manually, you can restore it using official Microsoft recovery tools. Microsoft Support 1. Fix Without a Disc (Advanced Boot Options)
However, you cannot download the BOOTMGR file as a standalone piece of software. Because it is a core system component, downloading a random BOOTMGR file from the internet is dangerous and can expose your computer to malware. windows 7 bootmgr download
Hi there,
If the automated repair does not work, you can use the Command Prompt to manually deploy a fresh copy of the boot manager. Follow steps 1 through 5 from the Startup
Select from the System Recovery Options menu.
If software repairs fail to bring your operating system back to life, the problem may lie within your computer case: Microsoft Support 1
Restart the computer and open the boot menu (often or F11 ). Select your disk or USB drive from the list.