Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Repair Windows 7 boot menu on UEFI

22 Aug 2012   #41
vic4ever

Windows 7 Home Premium x64
 
 

Quote:
I am still confused about your partitions. Your 3rd partition is 138 GB and says System. What is that? Since it would normally be your Windows partition, do you know why it is not. Having two System partitions is not normal. I don't know how to get the System off the partition, unless you remove the boot flag.
Maybe you have confused between the volumes and the partitions. The 3rd volume is the recovery volume but the 3rd partition is exactly the Windows partition as showed in this link.

I remove the System off the partition by set its ID to a GUID basic data partition: set id=ebd0a0a2-b9e5-4433-87c0-68b6b72699c7. I don't know how to get the 3rd partition GUID but I belive its GUID is a EFI System Partition one.

Quote:
You say both Windows 7 and Ubuntu are in your 4th partition (140GB)....
The Windows 7 is in my 3rd partition and the Ubuntu is in my 4th partition. Maybe I made a typo somewhere

Quote:
If you look in the 3rd or 4th partitions, does either one have a Windows folder in it? You could check using the live Ubuntu, or from a command window.
Yes. The 3rd partition has the Windows folder in it and the 4th partition has an Ubuntu folder.
Quote:
This is my Diskpart readout for comparison. I do agree something is messing up the way your system sees the partitions.

Partition ### Type Size Offset

------------- ---------------- ------- -------
Partition 1 System 100 MB 1024 KB
Partition 2 Reserved 128 MB 101 MB
Partition 3 Primary 122 GB 229 MB
Partition 4 Unknown 95 MB 122 GB
Partition 5 Primary 82 GB 122 GB
Partition 6 Unknown 18 GB 205 GB
I am also attaching my GParted Disk Management window for your info. Maybe you will see something. I used the screenshot utility then changed the name to something simple before saving. .
Thank you very much. Even I have solved this problem, I will have a look to make sure no problem remains.

By the way, how did you specify a boot partition for Ubuntu during setup ?


My System SpecsSystem Spec
.
22 Aug 2012   #42
vic4ever

Windows 7 Home Premium x64
 
 

Quote   Quote: Originally Posted by Saltgrass View Post
Quote   Quote: Originally Posted by boyans View Post
EFI with GPT disks are going to create much headache, I think, until we get enough knowledge.
Not really sure the current situation would suggest this. But I do wish manufacturers would make an effort to inform their customers when a UEFI system is being used, and perhaps some direction about certain procedures, such as how to boot to a UEFI DVD...
I do really hope so. If I know that my laptop is using UEFI, things would have been different.

Quote   Quote: Originally Posted by gregrocker View Post
I have a question:

If this disk was installed using EFI then how was there a Logical partition, since my understanding is that EFI can only be installed to a GPT disk which allows no Primary or Logical partitions?
In my case, there is no Logical partition. There are only Primary partitions. 2 primary partitions which I use to store data and a primary partition to store Windows folder.
My System SpecsSystem Spec
22 Aug 2012   #43
gregrocker

 

Are you sure this is a GPT disk? Look in Disk Mgmt, rightclick on panel to the left of the HD on drive map to see what it offers to convert to. MBR or GPT?

And if it's MBR disk which would have a Primary partition, then it couldn't be a x64 EFI install could it?
My System SpecsSystem Spec
.

22 Aug 2012   #44
Saltgrass

Windows 7 x64
 
 

Sorry, I cancelled that post because I saw you had it fixed, but no, I am not confusing partitions. Some statements made, which I could have misunderstood, caused some uncertainty on my part...
My System SpecsSystem Spec
22 Aug 2012   #45
vic4ever

Windows 7 Home Premium x64
 
 

Quote   Quote: Originally Posted by gregrocker View Post
Are you sure this is a GPT disk? Look in Disk Mgmt, rightclick on panel to the left of the HD on drive map to see what it offers to convert to. MBR or GPT?

And if it's MBR disk which would have a Primary partition, then it couldn't be a x64 EFI install could it?
It offers to convert to a MBR disk but this option is disabled. Using diskpart also confirmed this since there is an asterisk in the gpt column for this disk when I listed the disks.
My System SpecsSystem Spec
22 Aug 2012   #46
vic4ever

Windows 7 Home Premium x64
 
 

Quote   Quote: Originally Posted by Saltgrass View Post
Sorry, I cancelled that post because I saw you had it fixed, but no, I am not confusing partitions. Some statements made, which I could have misunderstood, caused some uncertainty on my part...
Maybe it is because of my english By the way, thank you very much for your help
My System SpecsSystem Spec
22 Aug 2012   #47
gregrocker

 

Does EFI confer any advantages that you prefer?

Have you considered reinstalling to MBR disk removing EFI boot disk from boot order?

It would be very helpful to have someone with your abilities make the comparison, stick around to help others.

Have you had to repair Win7 yet and learned the extra steps involved with booted repairs? This appears to upend many of the procedures and workarounds developed here.
My System SpecsSystem Spec
22 Aug 2012   #48
vic4ever

Windows 7 Home Premium x64
 
 

Quote   Quote: Originally Posted by gregrocker View Post
Does EFI confer any advantages that you prefer?
This is the 1st time I know about EFI since I just bought this laptop .... last week and EFI is the default configuration. In my case, there is no obvious advantage since my HDD is only 750GB. The benefit from decreasing booting time is not enough.

Quote:
Have you considered reinstalling to MBR disk removing EFI boot disk from boot order?
No, I'm not However, since I'm going to install Ubuntu, if there are problems after that, I would consider changing back to MBR.

Quote:
It would be very helpful to have someone with your abilities make the comparison, stick around to help others.
It's my pleasure to contribute something back to the community

Quote:
Have you had to repair Win7 yet and learned the extra steps involved with booted repairs? This appears to upend many of the procedures and workarounds developed here.
Since I had repaired Win7 on my old laptop using DiskPart, I have some experience in this problem.
My System SpecsSystem Spec
22 Aug 2012   #49
boyans

Win 8 RP, Win 7, XP
 
 

@Saltgrass
Quote:
Not really sure the current situation would suggest this.
1. Microsoft has introduced his own bootmgr.efi (and is using the EFI firmware boot manager just to boot his own boot manager). One more element to fix !

2. Linux implementations are still having errors when installing on GPT (I hope they already fixed it):
Example - if you boot an installation media say DVD using nonEFI way then the installation procedure by default expects MBR disk as destination and fails on GPT.
My System SpecsSystem Spec
22 Aug 2012   #50
Saltgrass

Windows 7 x64
 
 

Quote   Quote: Originally Posted by boyans View Post
@Saltgrass

1. Microsoft has introduced his own bootmgr.efi (and is using the EFI firmware boot manager just to boot his own boot manager). One more element to fix !
Could you explain what you mean by one more element to fix? Any examples you could give. Not saying you are wrong, just need more info.

Quote   Quote: Originally Posted by boyans View Post
2. Linux implementations are still having errors when installing on GPT (I hope they already fixed it):
Example - if you boot an installation media say DVD using nonEFI way then the installation procedure by default expects MBR disk as destination and fails on GPT.
If you looked through the thread, you would see I did just what you said is a problem. You do have to add a special boot partition. But why install in Legacy mode if you have UEFI? But I believe the 12.04 version of Ubuntu did make some improvements over the 11.xx version.
My System SpecsSystem Spec
Reply

 Repair Windows 7 boot menu on UEFI




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
UEFI hard drive boot order and boot menu are completely ignored
I have a bit of a puzzle, and I don't know whether to blame the motherboard maker, Microsoft, or -- this is a really distant third choice, obviously -- myself. (That being said, UEFIs and GPT drives are new to me, so that distant third choice might not be as distant as I'd hoped.) I recently set...
PC Custom Builds and Overclocking
Asus N76 UEFI - W7 64 Install Hangs on Logo (DVD UEFI Boot)
**** This issue has been resolved **** **** Look at Page 4, posts 4 and 5 **** **** You need to enable Legacy MBR by Enabling Launch CSM in the EFI Setup **** Hello all, This is my first post. I am a Windows 7 user and now (against my will) Windows 8. I bought an ASUS N76 laptop...
Installation & Setup
Advanced Boot Menu: Repair Your Computer Doesn't Work
Hello everyone, I would like to address a problem I ran into while trying to restore my Dell XPS M1330 to factory settings. When I boot into advanced boot menu by pressing f8 (I have tried ctrl+f11 and it doesn't work) I press enter on the "Repair Your Computer" option however, when doing so, it...
Performance & Maintenance
how to repair boot menu
hi I installed windows 7 ultimate on second partition decided to remove it formatted partition when laptop starts gives me dual boot options how to remove this option please
Installation & Setup
UEFI boot keeps changing; UEFI/Win7 handshaking confusion
Trying to understand handshaking between UEFI & Win 7. Have Win7 Pro sp1 64 installed on SSD, mb=Asus F2A85-V Pro. Example: boot to flashdrive to do Acronis backup of SSD; remove SDD, insert spinner; boot again to flashdrive to do Acronis restore to spinner (to test backup); remove flashdrive, boot...
Installation & Setup
Boot UEFI from wake on lan, or convert UEFI MBR to legacy.
Hi all, Currently having a wake on lan issue with a certain computer. The machine is setup correctly but the windows boot information is stored in a 100mb UEFI partition, and when the computer wakes on lan, it will not boot windows, just sit at a blank screen. When it wakes on lan it is...
General Discussion


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 20:24.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App