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How to Run & Switch Between Two or more Operating Systems without Restarting/ Rebooting ur Computer

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It may seem unbelievable but i have got this software that enables you to run more that one operating system on your Computer and also enable you to switch between multiple operating systems without rebooting or restarting your computer join me in this jolly ride:

Virtual Box is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Not only is Virtual Box an extremely
feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source
Software under the terms of the GNU General Public License (GPL)
 Presently, Virtual Box runs on Windows, Linux, Macintosh, and Solaris hosts and supports a large number of guest operating systems including but not
limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7), DOS/Windows 3.x, Linux (2.4 and 2.6), Solaris and OpenSolaris, OS/2, and

Virtual Box is being actively developed with frequent releases and has an ever growing list of features, supported guest operating systems and
platforms it runs on. Virtual Box is a community effort backed by a dedicated company: everyone is encouraged to contribute while Oracle ensures the
product always meets professional quality criteria.

1.1 Why is visualization useful?
The techniques and features that VirtualBox provides are useful for several scenarios:
Running multiple operating systems simultaneously. VirtualBox allows you to run more
than one operating system at a time. This way, you can run software written for one
operating system on another (for example, Windows software on Linux or a Mac) without having to reboot to use it. Since you can configure what kinds of “virtual” hardware should
be presented to each such operating system, you can install an old operating system such
as DOS or OS/2 even if your real computer’s hardware is no longer supported by that
operating system.

Easier software installations, Software vendors can use virtual machines to ship entire
software configurations. For example, installing a complete mail server solution on a real
machine can be a tedious task. With VirtualBox, such a complex setup (then often called
an “appliance”) can be packed into a virtual machine. Installing and running a mail server
becomes as easy as importing such an appliance into VirtualBox.
Testing and disaster recovery, Once installed, a virtual machine and its virtual hard disks
can be considered a “container” that can be arbitrarily frozen, woken up, copied, backed
up, and transported between hosts.
On top of that, with the use of another VirtualBox feature called “snapshots”, one can save
a particular state of a virtual machine and revert back to that state, if necessary. This way,
one can freely experiment with a computing environment. If something goes wrong (e.g.
after installing misbehaving software or infecting the guest with a virus), one can easily
switch back to a previous snapshot and avoid the need of frequent backups and restores.
Any number of snapshots can be created, allowing you to travel back and forward in virtual
machine time. You can delete snapshots while a VM is running to reclaim disk space.
Infrastructure consolidation, Virtualization can significantly reduce hardware and electricity
costs. Most of the time, computers today only use a fraction of their potential power
and run with low average system loads. A lot of hardware resources as well as electricity
are thereby wasted. So, instead of running many such physical computers that are only partially
used, one can pack many virtual machines onto a few powerful hosts and balance the
loads between them.
>Download all the required Software at the end of this post
>You need a standard Computer with at least 1gb or ram and 40gb of hard disk although i will advice anybody to use 2gb of ram and anything above 40gb

of hard disk as the minimum requirements
>The parent OS must have admin privileges
>You need the installation CD for the operating system you wish to use in your virtual machine

Now How to Install:
the steps to install are very download VirtualBox and the extension packs from the links at the end of this post
Now that you have all that is needed double click on VirtualBox-4.1.8-75467-Win.exe and you will have something like the picture below.

>Install both VirtualBox and VirtualBox extension pack compatible with your OS
>After installation run the program and select NEW from the top left corner
you will see something like what is below………….

>Next Select the Amount of base memory i mean ram that you want to allocate to this virtual machine. this will only be used when running the two 

windows simultaneously
as you can see from my screenshot i was having 3054mb of ram but i gave my virtual machine 512 of ram(don’t panic you can adjust this afterwards.

>Click next to select start up hard disk default is okay here but if you want to use an external hard disk, you can change your parameters here
>Click next to create your virtual hard disk
>Click next to choose virtual disk storage details the Default which is Dynamically allocated is very okay
>Next is for you to give the new machine a name and select the type of operating system you want to install and the hard disk storage space as:
Indicated below:

>You are now one step from creating your first VM as you are faced with the summary of all your options just click on create to create or on Back if

you think you made a mistake somewhere
>Once you successfully create it, you ill see something like what is in the picture below:

>Now get your installation CD/ DVD into your CD/DVD Drive then click on start
>you will see a message Welcome to the first run click NEXT
>Select installation media (mind you can install from either USB or CD/DVD but I go for a
DVD installation disk

>Next is the summary before you install your virtual OS
>If everything go well you will see something like the screenshot below

>Just follow the on-screen message as you would when installing windows on a normal computer

The intallations are in progress, I will here by drop all the snapshot of this stage now, so that you can see it yourself.

Here is where you will format or partition your system and load windows. More info are coming shortly…..

Congratulations you have successfully created a virtual machine just insert your CD or DVD/USD flash drive to start installing your files and programs
like I tell you this your new OS is independent of your real computer OS and at the same time it will perform 100% as a normal OS.
if you want to test a software that you think can damage your computer try it on the VM and let it damage it instead after all you can install another

easily without loosing anything;
As I have mentioned in my post above the Advantages of using it outweigh the disadvantages
E.g. you can use two or more operating system like Mac, Ubuntu vista XP Windows 7 etc on your computer without having to reboot/ restart your

computer see my first screenshot.

You can create a shortcut of your favourite Virtual machine on your Desktop just like mine below:


Note: mind you, Virtual box cant use your parent hard disk it can only use drives such as USB, and DVD drives

Before your virtual machine can perform optimally you need to install Guest addition/ extension pack to do this go to
Devices>>and click on the last option there which is ”install Guest addition” the drivers installations will start
just let it finish then reboot
to install any USB device, go to Devices>>and click on USB Devices
Do the same for CD/ DVD drives

Download links: The required Software to run windows xp, windows 7, windows vista in one hard disk drive and boot them without shutting your system down.
VirtualBox extension pack for version 4.0.16 below
VirtualBox extension pack for version4.1.8-75467
Microsoft also has a similar thing called VirtualPC but it doesn’t support other operating systems
you want to give it a try, and then download below:
VirtualPC windows7 32-bit (x86) »
VirtualPC windows7 64-bit (x64) »
Windows XP Mode Direct Download Links
English »

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  1. Adeleke Augustus says

    This is nice walk through instruction for PC users

  2. Noble .J. Ozogbuda says

    Thanks very much for your comments. U can write articles for us.

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