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Windows 7: Boot manager missing after BIOS update

28 Apr 2011   #1
dancinbear

Windows 7x64 Home Premium service pack 1
 
 
Boot manager missing after BIOS update

Story of my life..I'm confused. I updated my BIOS as I was having a problem mentioned in one of the updates. I was using the Easyflash2 by Asus and the update succeeded but when it re-booted I got the awful news..boot mgr missing. Would my best bet be to just re-image? Thanks for your help.


My System SpecsSystem Spec
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28 Apr 2011   #2
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate
 
 

Hello mate.



Start by having a look through this tutorial at the link below, if doing the 3 separate startup repairs doesn't sort the issue, you may have to use the outlines in Option Two to mark the Windows 7 partition as Active and then do the startup repairs again; be sure to post back with any further questions you may have and to keep us informed.


Startup Repair - Run 3 Separate Times
My System SpecsSystem Spec
28 Apr 2011   #3
dancinbear

Windows 7x64 Home Premium service pack 1
 
 

Thanks for the quick response. I will get to it. Bill
My System SpecsSystem Spec
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28 Apr 2011   #4
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate
 
 

Hello Bill, you're welcome; be sure to post back to keep us informed!
My System SpecsSystem Spec
28 Apr 2011   #5
gregrocker

 

What is the SATA controller setting now in BIOS?

It was likely reset to default which may be different than the setting in which Win7 was installed. If it's now IDE mode, try AHCI instead - or vice versa.
My System SpecsSystem Spec
29 Apr 2011   #6
dancinbear

Windows 7x64 Home Premium service pack 1
 
 

Thanks for your help, but none of those things seemed to help this time around. I ended up just loading everything back from scratch. I was able to re-image, so it wasn't too bad. I really, really appreciate both of your responses. Bill
My System SpecsSystem Spec
29 Apr 2011   #7
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate
 
 

Hello again Bill.


Good you have an image to go back to; have a look at this tutorial at the link below, this is from that same tutorial and I do this myself, it comes in very handy!

How to Use the BCDEDIT Command Line Tool
warning   Warning

IMPORTANT: make a backup of your bcd file first. To do that, type:

bcdedit /export C:\SAVEDBCD

This will create a file c:\savebcd which is your boot entry backup.
If you mess up, you can always undo changes by:

bcdedit /import c:\savedbcd


My System SpecsSystem Spec
30 Apr 2011   #8
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Quote   Quote: Originally Posted by gregrocker View Post
What is the SATA controller setting now in BIOS?

It was likely reset to default which may be different than the setting in which Win7 was installed. If it's now IDE mode, try AHCI instead - or vice versa.
Do you reset the BIOS, before installing Windows 7 the first time?
My System SpecsSystem Spec
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 Boot manager missing after BIOS update




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