31/05/2017
HOW TO DELETE ONE OS FROM DUAL BOOTING OS
The process is actually quite simple, but
many of you ask us this when you go through
your first dual-booting process, so we've
decided to lay out the instructions here for
easy access. All you really need to do is delete
the partition on which your unwanted OS is
installed. That process will vary a little based
on which OS you're keeping, so here are
three sets of instructions.
Note: Before you start, make sure you have an up-to-date backup of the system you want to keep. If you make one tiny mistake in the steps below, you could end up deleting the wrong partition, which would be very very bad!
Keep Windows and Remove Linux
If you've given Linux a shot but you're ready
to stick with Windows as your main OS, you'll
have to go through a few extra steps. This
assumes Windows and Linux were on the
same drive, and the partitions are located
next to each other. Here's what you need to
do: If you set up your dual-booting differently,
your instructions may vary slightly—like if
you put Linux on a separate hard drive, or if
you have other operating systems on the
drive. But for most people, these instructions
should suffice.
Keep OS X and Remove Windows or Linux
If you've using a Mac, removing another
partition is very easy. Again, this assumes
that your partitions are on the same drive.
Update : Reader Marty F81 notes that actually,
the best way to uninstall Windows is to use
Boot Camp's built-in uninstaller. You can do
this by launching the Boot Camp assistant and
following the prompts.
If you are running Windows in BootCamp on an Apple, you actually need to uninstall it via Boot Camp …
If you need to remove a Linux partition,
however (or you're on a Hackintosh), here's
what you'll want to do: You Mac may take a minute to perform the necessary processes, but when it's done, your system will be back to its original Macintosh self. If you had rEFIt installed on your
system, you can leave it there—it isn't going
to hurt anything—but you can also remove it
just by deleting a few files .
Keep Linux and Remove Windows If you're the adventurous type and have decided to go to Linux full time, then your job is pretty easy. Instructions may vary by distro and your specific setup, but for the traditional Ubuntu setup, it should look something like this:
When it finishes, you should have a hard
drive with nothing but Linux on it.
Your boot menu will still have some Windows entries, and it'll work fine if you leave them there,
but if you want to clean things up, just open up a Terminal in Linux and run:
sudo update-grub to remove them.
Like we said, every dual-boot setup is a
beautiful and unique snowflake, so you may
have to adjust some of these instructions as
you go to work with your specific settings.
Hopefully, this should give you a good guide,
though. Always remember to back up first,
and good luck!