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Windows 7: Bootmgr is missing

15 Dec 2009   #1

Windows Vista Home Premium OEMAct
Bootmgr is missing

I have an Asus Intel (R) Core (TM)2 Duo CPU T6500 @2.10GHZ LAPTOP. I am a basic computer user and simply tried to upgrade to Windows 7 because when I purchased the computer in August it came with a free upgrade.

I performed the upgrade check and folllowed the Windows 7 sugestions. I hit the upgrade button and 2.5 hours later things were going fine. The last step was approx 50% finished (Trasferring files, drives, etc.)

The system retstarted automatically and I received the Bootmgr is missing. I went on the forum and found a sugestion to Boot from the DVD. I tried this and it worked. System rebboted fine. Got a message to repair or revover. I repaired the start up. That worked and now the computer starts from its own hard drive.

After startup, "starting windows", I see wa window that says Setup is starting services and then I get a window box that says, "Th computer restarted unexpectedly or encountered an unexpected error. Windows Installation cannot proceed. To install Windows, click "OK" to restart the computer, and then restart the installation.

When I hit ok, the computer restarts and I eventually circle back to this screen.

Do I need to initiate something to restart the installation? Please help!

My System SpecsSystem Spec

15 Dec 2009   #2
Microsoft MVP


You can boot into the Windows 7 DVD Repair console and see if it finds an installation to repair, then run Startup Repair repeatedly to try to start it up.

What you have is probably another failed in-place Upgrade. This is why every tech enthusiast only does clean installs, preferably from booting the DVD to use Custom Advanced drive tools to format before install.

If you have files that were'nt backed up, Asus provides the tech suppport for the Windows 7 Upgrade kit and might be able to help you roll it back if it is just an incomplete installation. Otherwise you can only try to start it up using Repair.

The good news is that you can now move on to the much superior clean install, booting from the DVD and formatting the drive. The installer is nearly driver complete, with newer drivers arriving in Windows Updates. There should be a drivers/apps disk included in your Upgrade Kit to find any drivers which are missing in Device Manager, or favorite apps on your model. Other drivers/apps can be found on the Support Downloads page for your model on the manufacturer's website.

Adobe reader/flash and Java runtime/free Ofc suite are on their sites. You'll need to find your other program disks/installers.
My System SpecsSystem Spec
16 Dec 2009   #3

Windows Vista Home Premium OEMAct

Thanks gregrocker. Question: The startup repair worked so that I can atleast boot computer from the hard drive. However, it will not get past the "Setup is starting service page" Should I continue trying to run the startup repair to see if it self corrects?

I will aslo contact Asus.

My System SpecsSystem Spec

16 Dec 2009   #4


By all means give it a try, but odds aren't great that it will work.
My System SpecsSystem Spec
16 Dec 2009   #5
Microsoft MVP


Are you needing to get files off of the failed install that will be lost if you clean install now?

Then I would use Asus support to t;ry to salvage Upgrade.

Otherwise a failed Upgrade is not worth salvaging.
My System SpecsSystem Spec
19 Dec 2009   #6

Windows Vista Home Premium OEMAct

Okay..... Now I have Windows 7 up and running. Did a clean intstall but I thought all of my files would be in the "windows old" file in my C: Drive. The folder exists and some file names are there but I can't access the files.

My C: Drive is still called Vista and shows 109 of 300 Gb as being used. Most of that is my music but why can't i find it. Any recovery software I could use? what about a system restore.

I have a hard time believing they are gone if the space on the hard drive is used.
My System SpecsSystem Spec
19 Dec 2009   #7
Microsoft MVP


If you ran the reinstall from boot mode then the windows.old folder would likely not save the files again, but I'd check it more thoroughly as I am wondering why it is there at all if you overwrote a failed in-place Upgrade from boot mode.

There is a way to roll back to Vista using the windows.old file which you might try experimentally to see what is there.

Then you can do the cleanest possible install whcih is to boot from the DVD and format the drive before install. Unless you want to try the in-place Upgrade again.
My System SpecsSystem Spec

 Bootmgr is missing

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