Boot Manager gone :(

I found this commands to fix MBR and bootsectors in Windows 7:

Replace x: in the commands below with the letter to your CD drive as detected by the Windows
Recovery environment.

Method 1:

Code:

bootrec.exe /fixmbr
x:\boot\bootsect.exe /nt60 all /force

Then ask it (nicely!) to try and rebuild your BCD data from scratch:

Code:

del C:\boot\bcd
bootrec.exe /rebuildbcd

If you're lucky, this'll work and you'll see a message telling you everything went OK.

Reboot your PC by typing in this command or by closing all the dialogs:

Code:

shutdown -r -t 0

Method 2:

Code:

bootrec.exe /fixmbr
x:\boot\bootsect.exe /nt60 all /force

Now we get rid of the old BCD registry, and create a new one instead.
Note: We're assuming that the boot drive is drive C: below.
If your computer is configured differently, be sure to use the appropriate drive letter here instead.

Code:

del C:\boot\bcd
bcdedit /createstore c:\boot\bcd.temp
bcdedit.exe /store c:\boot\bcd.temp /create {bootmgr} /d "Windows Boot Manager"
bcdedit.exe /import c:\boot\bcd.temp
bcdedit.exe /set {bootmgr} device partition=C:
bcdedit.exe /timeout 10
del c:\boot\bcd.temp

Now we have a clean, working Win 7 bootloader. But we need to add a Win 7 entry to it:

Code:

bcdedit.exe /create /d "Windows 7" /application osloader

bcdedit.exe should return a message with a GUID for the newly-created entry, something like this:

Code:

The entry {c0dfc4fa-cb21-11dc-81bf-005056c00008} was successfully created

You'll need to use the value that bcdedit.exe returned for you below, along with the drive
letter for the drive that Windows 7 is installed to:

Code:

bcdedit.exe /set {c0dfc4fa-cb21-11dc-81bf-005056c00008} device partition=C:
bcdedit.exe /set {c0dfc4fa-cb21-11dc-81bf-005056c00008} osdevice partition=C:
bcdedit.exe /set {c0dfc4fa-cb21-11dc-81bf-005056c00008} path \Windows\system32\winload.exe
bcdedit.exe /set {c0dfc4fa-cb21-11dc-81bf-005056c00008} systemroot \Windows

And, last of all, tell the Win 7 bootloader to boot the new entry by default:

Code:

bcdedit.exe /displayorder {c0dfc4fa-cb21-11dc-81bf-005056c00008}
bcdedit.exe /default {c0dfc4fa-cb21-11dc-81bf-005056c00008}

At this point, you have a clean, untouched, and (hopefully) fully-working bootloader.

 

Awesome tut!