Removing
a dual boot can be dangerous and it does not guarantee that windows
will forget about the 2nd boot sector. This is your first step in
removing the boot option screen and second OS installation.
1. Right click on
My Computer and select
properties
2. Move to the
Advanced tab
3. Under
Startup and Recovery select
Settings
4.
If you wish to leave the OS 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 your default OS.
5. Otherwise, if the removal of the OS is your goal, then click
edit.
6. First save a copy of the notepad file which opens ‘boot.ini’ just in case you make a mistake.
You will see lines such as the following:
[boot loader] timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[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 the other OS here under [operating systems] something like ‘multi(1)disk(0)partition(#)…’
7.
Check that your default line points to XP, as it does above. Then
erase the line with the other OS, in this case DOS 7.1 (for example
‘multi(1)’). Please note that the entire line of code to be removed may
be more than one line in notepad. Save the file.
8. Reboot
9. If everything looks correct, you can delete the folder associated with the OS that you wish to delete.
If any mistakes occur, load back into your existing OS, copy the old boot.ini over the modified one, and try again.