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Windows 7: Boot - help with neating up MBR mess

17 Sep 2011   #11
mjf

Windows 7x64 Home Premium SP1
 
 

Quote   Quote: Originally Posted by monographix View Post
to hopefully simplify my description : my current windows XP & 7 setup was made with both physical drives pluged in and i installed windows 7 last and once discovered the XP installation on the other drive, i allowed the installer to create a multiboot option start menu (and now the 7 drive depends on the XP drive to start. Apparently the 7 dvd wrote the boot information on the XP drive)

What i want to do now is to make both installations / drives totally independent from eachother and i want to be able to choose OS only from the bios F11 (or F12 in some boards) key at boot time. I am more troubled if i can revert the XP MBR to a virgin XP single OS form.
Your description was understood the first time and a recommendation to boot via Windows 7 given.
Now you have decided to BIOS boot and want instructions?

1) You have the help for XP using the "Bootsect" command.
2) For the Windows 7 disk (assuming no system reserved partition) it must be marked ACTIVE before running the repair function 3 times from the system repair disk. It must be the only disk connected.
If this doesn't work then, with the W7 marked active, from the System Repair disk command line you run

bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd


My System SpecsSystem Spec
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17 Sep 2011   #12
monographix

7 Ultimate x64
 
 

great info. Thanks (everyone). that i guess sums it up. it was important to notify me about the possibly three times necessity , otherwise i would be very stressed to see that it didn't work the first time not knowing more steps are involved. Good also to know the alternative command lines & system repair disk approach in case that it wont work. Good also to have the verification of the XP procedure.

Saving me lot of time and stress.
My System SpecsSystem Spec
17 Sep 2011   #13
seavixen32

Windows 7 Ultimate SP1 64-Bit
 
 

You're very welcome.

Keep us up-to-date with the outcome and don't hesitate to post back if you need further help.
My System SpecsSystem Spec
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18 Sep 2011   #14
monographix

7 Ultimate x64
 
 

finished with the 7 . all ok so far
My System SpecsSystem Spec
18 Sep 2011   #15
monographix

7 Ultimate x64
 
 

XP ready now too. bootsect worked flawlessly on the XP drive. Only that there wasn't any bootsect.exe in my windows and i used one i found in the EasyBCD folder.
My System SpecsSystem Spec
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 Boot - help with neating up MBR mess




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