![]() |
|
25 Aug 2011 | #1 |
|
Recover Windows 7 boot on dual boot system with GRUB masterboot
Hi,
I have a dual-boot system Ubuntu/Windows 7. The Master boot loader is GRUB. It worked fine until yesterday when, for some reason, Windows 7 refused to load anymore. I tried to repair with chkdsk, found and repaired some disk errors, but now the boot loader is damaged. The problem I have is that after selecting Windows from the GRUB list I get the installed version entry but I can't have access to Repair through F8 and thus I am not able to continue on the installation DVD. The problem I think would be simple, by writing a new boot using bootrec, but I don't have access to the console. I've seen a solution/tutorial on this forum except that it requires to remove Linux, which is not at all my scope. Thanks |
My System Specs![]() |
. |
|
25 Aug 2011 | #2 |
![]() |
![]() Boot up using the Startup Repair CD or Windows 7 DVD. (not the OEM manufacturer's Recovery Disk) If you have a Netbook, you will need a CD/DVD drive. NOTE: Make sure no USB drives are plugged in. Do not use a USB Pendrive for Startup Repair. 1) Use the Rebuild BCD in this tutorial: How to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows ![]() ![]() 2) Fix MBR. ![]() NOTE: As you have Linux installed, the above only works for 1 in 1000, must likely you will need to reinstall. Good luck. |
My System Specs![]() |
25 Aug 2011 | #3 |
![]() |
Have a look at this. It requires a live Linux CD: http://www.howtogeek.com/howto/ubuntu/reinstall-ubuntu-grub-bootloader-after-windows-wipes-it-out/
|
My System Specs![]() |
. |
|
25 Aug 2011 | #4 |
|
Interesting, I've just learned that Microsoft wants me to pay to fix their bug. Good to know guys, but business is business.
Thanks to all who answered, seems like there's no solution |
My System Specs![]() |
25 Aug 2011 | #5 |
![]() |
IMO, Linux is the bug, in Dual booting.
|
My System Specs![]() |
25 Aug 2011 | #6 |
![]() |
Grub can be a pain in the neck. That is why I always install Linux on a seperate physical disk and disconnect the Windows disk during the Linux installation. The Grub cannot clobber the Windows bootmgr - and that works also the same the other way around (Linux first, Windows second). I then switch between the 2 systems with the BIOS boot sequence.
On another system (a laptop where I have only 1 disk) I run Ububuntu in Virtual Box. That is an even more elegant solution because you can switch seemlessly between Windows and Linux (requires the "Guest Additions" which are easy to install from the vBox "Devices tab"). There is quasi no performance impact running Ubuntu or Mint in vBox. A third solution is to run Linux from a USB stick. I do that with Fedora - but that is just for playing around. |
My System Specs![]() |
25 Aug 2011 | #7 |
![]() |
Yes, Best way to go.
|
My System Specs![]() |
25 Aug 2011 | #8 |
|
Well stated, Wolfgang. A separate HDD for Linux and Windows avoids all of these problems by keeping their relevant boot managers completely separate.
|
My System Specs![]() |
25 Aug 2011 | #9 |
|
Guys,
I'm sorry I was not clear. My problem is INSIDE Windows boot menu. I simply can't get to the repair option by pressing F8 as all the manuals state. Leave aside GRUB, it did its job and launched Win 7. Only that the disk zone of its OS loader was damaged (don't know how, but detected by chkdsk and supposedly repaired, by the log) and I can't get the Repair menu. That's all. So, the question is how can I get that menu, because now I get the message "Please insert the installation disk and reboot"; but when I reboot I pass through GRUB and Microsoft didn't think they can share the system with other OS! Also, I can't update to Win 7 SP1 on a dual-boot system because Windows doesn't find the partition. You still blame GRUB? Anyway, any idea how to get that Repair menu? |
My System Specs![]() |
25 Aug 2011 | #10 |
![]() |
Before or after removing GROB & Linux?
|
My System Specs![]() |
![]() |
Thread Tools | |
Similar help and support threads | ||||
Thread | Forum | |||
Dual boot system (Windows 8.1 and xp), how to edit boot menu from xp I installed Windows 8.1 to try. The problem is that it stopped working and gives me troubleshooting boot menu . I have Windows xp on the machine too that's working fine. So now every time I open my pc, I get the boot menu where it says Windows 8 can't start. What u want to do. Run... |
Installation & Setup | |||
Dual Boot W7/XP using Grub - Can grub assign letters to partitions? Hi I am looking at Grub4dos since my recent foray into all things bootloaders. I am gaining a little footing with what I can and can't do (practically!) Although it was definitely trickier than I thought (or I just don't have the same time like I used to... ) Anyhow, I am looking at Grub because... |
Installation & Setup | |||
Dual boot - now Grub is trashed I am stuck. Fresh install of everything: * 10mb partition in the front for Grub to live * Allowed Win7 (enterprise, 64bit) to make its 100mb partition next * Win7 "C" drive next (175gb) * Ubuntu (ext3) partition next (~75gb) Everything was going ok - both Win7 & Ubuntu were co-existing... |
Installation & Setup | |||
Remove GRUB with XP as dual boot to install Windows 7? thank u so much for this good tutorial,i have downloaded the windows 7 7264 for x86,my problem is that now i have two operating systems: 1)XP Sp2 2)Linux Fedora now my boot loader is GRUB and with that i select which of them start,the default is windows Xp, now i want to delete linux and just... |
Installation & Setup | |||
Dual Boot: Ubuntu and W7 Grub issue Ok so I have W7 and Ubuntu desktop installed on my HDD. I used gparted and deleted my ubuntu partition and set it NTFS. But I forgot about the GRUB loader. Now when I boot up, I get the "error 22". Anyways, how do I set it so I can just boot W7? Also! I'm on a netbook so it has to be a USB... |
Installation & Setup |
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 00:14. |
![]() ![]() ![]() ![]() ![]() |