Developer Submission: WinUSB – Create Windows USB without formatting!

Hello everybody! Now I want to tell you how to create Windows installation USB flash drive without formatting it.

WinUSB home page

When you want install Windows from USB drive...There are many ways to make a bootable USB stick with Windows on board. But most of them lead you through a mandatory formatting step or are very difficult to use with many options and confusing interfaces.

You can face the problem of having to format itIt can make you waste a lot of time understanding what to do, selecting important files and their subsequent saving on hard drive…

Now we have technique that allows you to avoid the problems described above. It is called WinUSB – small portable application that will guide you to creating Windows bootable USB flash drive with just three ease steps.

it can take a long time...Try WinUSB for create Windows bootable USB with no formatting!

Another important feature is that you don’t need administrator privileges to run this application, which is very positive in terms of information security.

Ok, let’s go! To begin you need download the program from the official web site:

www.winusb.net
*Microsoft IE or Edge users can launch WinUSB directly from the browser page by clicking “Start Online” on the main page.

As I promised you will need to overcome just three steps:

1. Select ISO or DVD to burn

Selecting distribution type in WinUSB

At first you need to select what type of distribution you have:

  • DVD icon    Windows Installation DVD
  • ISO icon    Windows ISO file

If you currently do not have any of these, you can get ISO file from Microsoft official web site. Read how to download Windows ISO from Microsoft web site in this article:

How to download Windows ISO from Microsoft website

2. Choose USB flash drive

Ok, now we have defined the type of distribution, we need to choose a flash drive wich will be bootable by clicking a combo-box with “Select USB drive” text. You need a USB stick at least 4 GB of free space.

When you plug it in, it will be detected automatically. The horizontal line below of stick name represents the ratio of free and used space. If you remove some data from selected drive or unplug it, application will also react automatically.

Selecting USB drive in WinUSB

3. Choose file system, if it necessary & Go!

If you have enough space on flash drive to put windows distribution to it without removing something, program will ask you whether you want to format it to one of known operation systems to get clean Windows USB drive.

But if there is not enough space, application will have to insist on formatting to release it, because WinUSB doesn’t know which files on flash drive are important for you and which are not. Of course, you can transfer your files into a safe place and WinUSB automatically detects freed up disk space.

Selecting file system and starting process in WinUSB

Ok, when you will be ready just click “Go” button, WinUSB will take care of the rest!

That’s it! Now you have your own Windows Installation USB drive with no losing any data from it!

How does it work

Now, if you have not lost interest let me say a few words about work principles. The app works completely transparent. It makes a Windows command file and runs it by clicking “Go!” button. You can check it contents anytime by path displayed on the lower row that you can see on last screenshot. I will give a review of file commands in outline bellow:

  1. Changing code page to utf-8 encoding for correctly determine file paths in all languages
  2. Making USB drive active – for detecting in BIOS as bootable
  3. Extracting or copying distribution content to USB drive
  4. Set master boot code for flash drive partition to be ready to boot Windows 7, 8, 10.

But if you are an advanced user and want to look under the hood, then you are welcome to inspect an instructions file by yourself 🙂

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