So now that we understand what Thales is and how it works in this lecture, I want to show you how to
install Thales on a USB stick so that we can start Thales on any computer that runs any operating system
using this USB stick.
Keep in mind the USB stick that you're going to pick in here will be formatted.
Everything stored on it will be deleted.
Now, the instructions that I'm going to show you will work on Windows Linux and OS X using the exact
same programs and using the exact same steps that I'm going to show you.
So I'm going to be doing these steps from a Windows computer, but these steps will work exactly the
same from Linux and OS X.
If you follow them and you face any problems, please ask us in the Q&A section and we'll respond to
you within 15 hours.
So in order to install Thales on a USB stick, obviously the first requirement is you'll need a USB
stick.
Now this USB stick needs to have a minimum size of eight gigabytes.
The next thing that we'll need is the Thales image.
I'm going to include its download link in the resources of this lecture.
And finally, you'll need software to flash the Thales USB image to the USB stick in order to have a
bootable USB stick with Thales on it.
And once we have that, we'll be able to connect that to any computer that runs any operating system
and run Thales from that computer.
Now the software that we're going to use to flash Thales to the USB stick is called Etcher.
And again I'm going to include its download link in the resources of this lecture.
And this application works on Linux, OS X and Windows.
So all you'll have to do is literally just go to the download page right here and it'll actually automatically
detect what operating system you're running.
So as you can see right now, it's automatically telling me I'm running windows and if I click here,
it will download the Windows version for me.
If it's not detecting the right version for you, you can click on this little arrow right here and
just download the version that is compatible with your operating system.
Now.
I already have that downloaded in here, as you can see.
So the next thing that I need is the tails image.
And again, as you can see in here, I have it and I'm going to include its download link.
I know right here it says install from Windows.
But like I said, this steps that I'm going to show you will work on all operating system.
So ignore this.
Click on the download in here.
Once you do it will download it for you.
And as you can see, I have it right here in my downloads as well.
It should be a file with a dot img extension as you can see here.
Once you have these two ready, the last thing that you'll need is the USB stick that you'll flash the
tails image to.
And I already have my USB stick connected to my Windows computer.
As you can see, I have it in here.
It has 28GB free.
But like I said, you only need a minimum of eight gigabytes.
So what we want to do right now is we're going to use this application etcher to flash this tails image
to this USB stick.
So the first thing that we'll need to do is to install this application.
So I'm going to double click it.
And we're going to agree.
And it's a very, very simple installer, as you can see it finished installing and it automatically
started the application for me.
Now the installation of this on Windows and OS X is literally as simple as this.
All you'll have to do is download it, double click it, and you'll get this window right here.
Now, just before I use this, just to show you, if the installer didn't run the program for you automatically,
you should have the icon of it right here on the desktop.
All you'll have to do is double click it and it'll start the application for you.
Now, using the application is very simple, as you can see.
All you'll have to do is, first of all, select the image that you want to flash to your USB.
And like I said, the image for me is this one right here, the one in the downloads.
So I'm going to click on Select Image and I'm already in my downloads directory, as you can see in
here.
So I'm just going to click on this image and click on Open.
We can see it's selected in here.
The next thing that you'd want to do is select the USB device that you want to flash the image to.
As you can see, it automatically selected my drive, my device, which is the device that I have right
here.
Like I said, this is the correct one.
In your case, if this wasn't the correct one, all you'll have to do is just click on change and select
the one that you want to flash tales to keep in mind.
The USB stick that you're going to pick in here will be formatted.
Everything stored on it will be deleted.
So if you're sure this is the correct one, you can click on Flash to start the process.
But before I do that, I want to verify the integrity of the image that I downloaded.
So I want to make sure that this image did not get modified as I downloaded it.
And I actually explained how this could happen, how it could get modified as it gets downloaded and
in the previous section.
So if you don't remember that, go back and revise that section.
But for now, I'm just going to show you how to verify that this image did not get modified.
So I'm going to go back to Firefox again.
We're still at the download page of Tales.
I'm just going to click on.
I already have it downloaded because I do have it downloaded.
And in order to verify the integrity of the image that we downloaded, we're going to use an extension
provided to us by the Tales developers and to install that, all we have to do is just click in here,
install tales, verification extension.
I'm going to say, yes, I want to allow that and I want to add it to my browser.
We're going to say, okay, and to use this, all we'll have to do is just click on Verify Tales in
here.
It's going to ask us to select the image that we downloaded.
Again, you want to make sure you go to your downloads and select the image that you downloaded.
We're going to click on Open and it's going to check the integrity of the image for us right now.
And perfect.
As you can see, it's telling us that the verification is successful, so the image is valid.
It did not get modified as we downloaded it and now we should feel safe flashing it to our USB device
so we can use it to boot into tales and use tales safely in the future.
So as we've seen before, I've already selected the image.
I've already selected my USB device that I want to flash tales to.
I'm going to click on Flash to start the flashing process.
I'm going to say, yes, that's no problem.
I give permissions and right now you just want to give it.
It's time to flash the image, verify it, and once done, it's going to show us a notification saying
the process is finished.
Now, like I said, all these steps that I've done so far are identical on all operating systems on
Windows, Linux and OSX.
Follow them exactly like I showed you right here.
Ignore the fact that it says Windows in this page and everything will work exactly as I'm showing you.
And perfect.
As you can see, its stillness flash is complete one successful device.
So everything is done with no errors.
And right now tills is installed on my USB device that is connected to my windows machine.
So right now I can unplug it from this machine and connect it to any computer, regardless of what operating
system it runs on.
And I'll be able to use tales from that computer without leaving any traces on it.
And I'll show you how to do that in the next lecture.