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Removing a Dual Boot in Windows

removing a dual boot can be dangerous, and does not guarentee that windows will forget about the 2nd boot sector, but this will remove the boot option screen and or allow the removal of an OS. Enjoy.

-right click on my computer, select properties
-move to the advanced tab
-under ’startup and recovery’ select settings
-in the new dialog box you have a couple of options:
-if you wish to leave DOS on the machine, but not see the option screen you can simply set the ‘time to display list of operating systems:’ to 0 as winXP should now be ur default OS
-if the removal of dos is your goal, then click edit
-first save a copy of the notepad file which opens ‘boot.ini’ just incase you make a mistake
-now there will be a lines similar to:
[boot loader]
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS=”Microsoft Windows XP Professional” /fastdetect /NoExecute=OptIn
*There will also be a line for dos here under [operating systems] something like ‘multi(1)disk(0)partition(#)…..’
-check that your default line points to XP, as it does above
-now erase the line with the other OS, in this case DOS 7.1 ie. ‘multi(1)’ NOTE *the entire line may be more than one line in notepad*
-save the file
-then you are free to erase the folder associated with the erased OS NOTE *if a mistake was made, you may wish to do this as the last step*
-reboot your system and its done.
-upon any mistakes load into either DOS or XP, etc which ever is easiest (or still remaining on your system)
-copy the old boot.ini over the modified one, and try again
-good luck
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