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Windows 7: BOOTMGR is missing//using LILO

09 May 2011   #1
Redmage913

Windows 7 Home Premium x64
 
 
BOOTMGR is missing//using LILO

Hey there,

I have a rather complicated problem with a probably simple solution. I used to have a tri-boot machine - my first primary partition was WinXP Pro, second was a Xubuntu installation with swap on an extended partition, and finally a Win7 Pro primary partition.

I deleted WinXP Pro and Xubuntu to create my very first Gentoo Linux installation. While that went well, I accidentally broke my Win7 startup. It's listed just fine under LILO (unless I listed it improperly) but Win7's BOOTMGR is now missing. I'm assuming the BOOTMGR might have been part of the WinXP installation.

I went to this guide: Bootmgr is missing - Fix

However, I don't want to replace the MBR. I just want to reinstall the BOOTMGR onto the Win7 Pro partition so I can boot both Gentoo and Win7 properly. Of course, I might be misinterpreting where the BOOTMGR is normally located.

Any suggestions?

Thanks much,
--Red


My System SpecsSystem Spec
.
09 May 2011   #2
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

First of all you are going to need to Create a System repair disk or you can use your Windows 7 Installation Disk

System Repair Disc - Create

First thing is to Boot into the Disk

Note   Note
You will need to make sure your BIOS is set to Boot from CD/DVD


After that Access to the System Recovery options

Please follow Option 2

System Recovery Options

Now you open up a command Prompt Window then enter the Following commands:

Code:
bootrec.exe /Fixboot
Press enter and then Enter this

Code:
bootrec.exe /Fixmbr
Press Enter

Now restart your Computer and see if you can boot into Windows 7

Tip   Tip
Plug in your AC Power cord if you are using a Laptop


Hope This Helps,
Josh
My System SpecsSystem Spec
09 May 2011   #3
Redmage913

Windows 7 Home Premium x64
 
 

Before I do this, won't that break LILO?
My System SpecsSystem Spec
.

09 May 2011   #4
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

Most likely but since this is a Windows 7 Forum my main concern is getting your Windows 7 Partition working ... I am not a Linux expert so you may want to ask a Question about it on another forum

Josh
My System SpecsSystem Spec
09 May 2011   #5
GEWB

Linux (Mint is primary) / XP, Win7 Home / Win7 Pro, Ultimate / Win8.1 / Win10 archived VM
 
 

I have a simple question: why not buy a second hard drive (use one for Linux and one for Windows) then boot via the BIOS boot manager? This is the easiest and safest method I've found.

Anyway, back to your question. So, XP is gone forever and the partition(s) reallocated somewhere else, correct? Also, you removed a previous distro of Linux, correct?

Now then, you originall had followed this installation order: XP installed > Linux installed > Win7 installed.

What boot manager did you use then, Win7, GRUB or LILO?

You asked if fixing the MBR will trash your current LILO - probably but so what? It's easy to recreate. But why? The Win7 boot manager is actually pretty good.

Try these linkd:

Windows no longer starts after you install an earlier version of the Windows operating system in a dual-boot configuration

How to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows

Modifying the Windows 7 boot loader with the Boot Configuration Data Editor tool | TechRepublic


Regards,
GEWB
My System SpecsSystem Spec
Reply

 BOOTMGR is missing//using LILO




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