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: Lost windows 7 mbr

04 Jan 2011   #1
adman9000

Windows 7 Home Premium 64bit
 
 
Lost windows 7 mbr

Hiya, I hope someone can help me with this as I've got quite a headache at this point...

Basically at the moment I have an installation of windows 7 which I cannot get into, I just get that lovely 'BOOTMGR is missing' message. I have tried all the tricks with the Windows 7 cd - automated repairs, repairs via the commandline with bootrec etc and nothing makes any difference. It claims to have worked but when I restart I get the same old message.

In the process of trying to fix this I have also buggered up my installation of Ubuntu on a separate drive so I cant even boot into that either.

The issue started after installing Ubuntu, I didn't want a dual boot machine where you select the OS from a list each time you start up, I wanted it to boot from one drive or the other based on the BIOS settings so I removed my Windows drive, installed ubuntu & tested that, then plugged the windows drive back in and tried to boot into it. Thats the point where things started going a bit poo..

Please please help before the final showdown between my forehead and the desk..


My System SpecsSystem Spec
.
04 Jan 2011   #2
bigmck

Windows 7 Home Premium 32-Bit - Build 7600 SP1
 
 

Quote   Quote: Originally Posted by adman9000 View Post
Hiya, I hope someone can help me with this as I've got quite a headache at this point...

Basically at the moment I have an installation of windows 7 which I cannot get into, I just get that lovely 'BOOTMGR is missing' message. I have tried all the tricks with the Windows 7 cd - automated repairs, repairs via the commandline with bootrec etc and nothing makes any difference. It claims to have worked but when I restart I get the same old message.

In the process of trying to fix this I have also buggered up my installation of Ubuntu on a separate drive so I cant even boot into that either.

The issue started after installing Ubuntu, I didn't want a dual boot machine where you select the OS from a list each time you start up, I wanted it to boot from one drive or the other based on the BIOS settings so I removed my Windows drive, installed ubuntu & tested that, then plugged the windows drive back in and tried to boot into it. Thats the point where things started going a bit poo..

Please please help before the final showdown between my forehead and the desk..
Did you go into BIOS and change your boot sequence when you were working before? That could be your problem. == Go in BIOS and make sure that the first boot option is your DVD drive and that the second is the drive that your Win 7 is on. Do not list a third option.
My System SpecsSystem Spec
04 Jan 2011   #3
mjf

Windows 7x64 Home Premium SP1
 
 

I'd physically pull the sata cable from the Ubuntu drive and run startup Repair (up to 3 times) with only the windows 7 disk connected.

As you probably know this will rebuild your MBR, and system boot files on your Windows 7 disk. I'd stick with Windows repair at this stage.
My System SpecsSystem Spec
.

04 Jan 2011   #4
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Did you have the MBR on the Win7 partition or in the 100MB active boot partition. You may have a chance to fix it (but in the right partition) with this program - look under the Disk tab.

Fixing the Ubuntu Grub is a different matter. There I cannot help you. Maybe this can help: Reinstall Ubuntu Grub Bootloader After Windows Wipes it Out - How-To Geek
My System SpecsSystem Spec
04 Jan 2011   #5
adman9000

Windows 7 Home Premium 64bit
 
 

Hurrah! it just booted up. I had a look at partition manager and decided to basically wipe any partitions I didnt like the look of (was slightly fed up by this stage!) then unplugged all drives except the windows one and ran startup repair a few times. So I guess some combination of the above replies worked, thanks!

I think I'll leave Ubuntu til tomorrow...
My System SpecsSystem Spec
04 Jan 2011   #6
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Glad you are making headway. Looks like you used the shotgun approach. You probably deleted the 100MB boot partition - and then you were able to add the MBR to C: which you must have made "active".
My System SpecsSystem Spec
04 Jan 2011   #7
mjf

Windows 7x64 Home Premium SP1
 
 

Don't argue with a shotgun - glad it worked.
I think it's safer to BIOS boot Ubuntu on it's own Disk.
My System SpecsSystem Spec
Reply

 Lost windows 7 mbr




Thread Tools




Similar help and support threads
Thread Forum
Changed from Vista to Windows 7 and lost all my Windows Live mail.
I recently had my slow laptop cleaned in order to improve performance. The guy deleted my Windows Live Mail folders and lots of other things(mostly unused anyway). He replaced Vista with Windows 7 Home Premium. Now I have lost all my mail. I am now using Windows Live Mail 2012 but can only see the...
Browsers & Mail
Old windows, lost key, where to get
Hi ppl, just had to reinstall my Windows 7 Ultimate x64 retail :geek: cant find the key... :shock: Have try the internet for keys but none working... :rolleyes: Anybody know a place to find working keys,,, Maybe shared from people who dont use W7 anymore...
Installation & Setup
Lost access to Windows 7 Drive (Dual-Boot Windows 7 & Ubuntu)
I lost access to my windows 7 drive (Dual-boot windows 7 & Ubuntu). every time I try to run Windows 7 I get the message: Bootmgr is compressed, Press CTRL_ALT-DEL to restart. I could run Bootrec /fixmbr or diskpart or attrib to rebuild my mbr table through DOS command window using my windows 7...
Installation & Setup
Lost my HP Touchsmart LOGO since I lost resetted my BIOS (I guess)
Hi All I have a HP Touchsmart 300-1060a (Home Premium Windows 7 64 BIT) which I bought few years back. Now for the last 6 months or so I started getting issues with my machine was not displaying anything at all after turning it on. So I had to hard reset my power from the machine and then...
Hardware & Devices
UPgrade from windows 7 32bit to windows 7 64 bit lost network driver
hi can anyone help. I had windows 7 32bit installed on PC have upgraded to windows 7 64bit but seem to have lost network adapter driver. Any advice would be apprecited, I have no network or internet access.:cry:
Drivers
Lost Dual Boot Screen?...Lost Windows 7
I have Vista Home Premium 64 bit and I downloaded 64 Bit RC Windows 7 and did a clean install on another partition of my hard drive. Dual boot was working for about 4 days then all of a sudden it doesnt come up any more. The partition is still there with Windows 7 installed on it but its not...
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 00:26.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App