How To Create Bootable USB for Windows Server

Updated by

Sherly 

Written by

Tracy King 

Updated on Apr 28, 2025

In recent years USB has mostly replaced optical media.  It serves a variety of functions, including data transfer, operating system installation, and a boot USB that can be used on any PC. For the most part, a USB is utilized for installation. The task of installing a Windows server from a USB disk is easy.

People nowadays prefer to burn the server 2019 ISO on a USB device to create a bootable drive. The reason for this is you may need to upgrade system server 2019 to a different PC or have a new server at times. You can save server 2019 to a USB to use for installation purposes.

Second, if you have a portable server on a USB, you can transfer it to another computer without restarting over with the installation process.

We will look at how to make a bootable USB in this article. We will also look at a third-party tool that makes the task go faster and easier. Before we get into the details, we recommend you download the Windows Server.iso file from Microsoft official website. Go to the Microsoft website.

Once you click on the link, select ISO and fill in the requirement to download. You can download the trial version with some additional features of App Compatibility FOD. This feature improves the compatibility of the server as well as the troubleshooting and debugging. 

Now let's take a look at the details.

How to Create Windows Server 2019 Bootable USB from ISO

You must complete the prerequisites before beginning the procedure. You must have the following factors ready ahead of time:

• You must be using a USB with an 8GB capacity. While burning, Windows Server 2019 consumes 4GB. Because the ISO image is divided into more than 3GB chunks, it requires extra space.
• The data is completely erased during the disk creation process. Always make a complete backup of your data. You will lose your important info if you don't create a backup.

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We have already created the prerequisites for making a bootable USB for Windows Server 2019. If you obtained the ISO file from the company's official website, you can use the command line to boot a USB disk. Follow the steps outlined below in detail:

Step 1. Insert the USB drive on your PC. Go to Start and type cmd in the search box. Click on Run as administrator to open a command prompt. 

Step 2. Type command diskpart and press enter. The diskpart tool will appear. 

Step 3. Type the following command one by one and press enter:

• list disk and press enter to appear disk list.
• select disk x 

Here x denotes the number of your flash drive. You can enter the disk name which you want to make bootable. 

Type the following commands one by one:

• clean
• create partition primary
• select partition 1

you will select the partition as per your own requirement 

• format fs=ntfs quick (if you want to create UEFI bootable USB, type "format fs=fat32 quick").
• active

Step 4. Type Exit and press enter. It will close the diskpart command. 

You have built a Bootable USB from ISO by following the steps outlined above. In the Windows Operating System, the command-line approach is a built-in feature. It is one of the simplest methods for creating a bootable USB. By typing a few commands you can make your USB bootable. The USB can be used on any other system.

We have now seen how to use the built-in feature. Now we will look at a third-party utility tool that can help make the task easy and quick.

Easier Solution: How to Create a USB Bootable for Windows Server Installation

Note: Before you begin the process make sure you back up your data and your USB has enough space of 8GB at least. 

On Windows Server, Microsoft has not included a feature to generate bootable USB drives. We recommend using EaseUS Partition Master, a third-party utility. This software is a disk partition manager that is available for free. It can assist in the allocation of disk space to improve data storage. This software makes disk management convenient.

The following are the key features of EaseUS Partition Master:

• It supports converting NTFS to FAT32. 
• It is capable of supporting split partition. 
• It reduced the frequent restart requirement.
• By correctly assigning the disk space it maximizes system performance. 
• Change partition label. 
• Flexibly adjust partition size by entering the exact partition size. 
• Prevent data loss. 
• Safe and secure to use.
• Available for a free trial. 
• It formats and deletes the partition HDD, SSD, USB, memory card, SD card so, the device must be reusable.
• To ensure security it entirely wipes out the data on the hard disk. 

Steps to Create Bootable USB:

Step 1. To create a bootable disk of EaseUS Partition Master, you should prepare a storage media, like a USB drive, flash drive or a CD/DVD disc. Then, correctly connect the drive to your computer.

Step 2. Launch EaseUS Partition Master, and find the "Bootable Media" feature on the left. Click on it.

Step 3. You can choose the USB or CD/DVD when the drive is available. However, if you do not have a storage device at hand, you can also save the ISO file to a local drive, and later burn it to a storage media. Once made the option, click the "Create" button to begin.

• Check the Warning message and click "Yes".

Step 4. When the process finishes, you'll see a pop up window, asking if you want to restart computer from the bootable USB.

• Reboot Now: it means you want to restart the current PC and enter EaseUS Bootable Media to manage your disk partitions without OS.
• Done: it means you don't want to restart the current PC but to use the bootable USB on a new PC.

Note: To use the bootable disk on a new PC, you need to resart the target computer and press F2/F8/Del key to enter BIOS, and set the USB bootable disk as the first boot disk.

Wait patitiently and your computer will automatically boot up from the USB bootable media and enter EaseUS WinPE desktop.

To easily create a USB using a trusted third-party tool. The best solution is EaseUS Partition Master. It formats external devices, manages partitions flexibly, and efficiently allocates space.

Conclusion 

To summarise what has been said so far, creating a bootable USB for a Windows server is a simple process. However, we recommend using EaseUS Partition Master to make things easy and safer. This tool makes it simple to create a bootable USB drive. The bootable USB Windows Server has yet to be released by Microsoft. So, if you want to create a USB bootable for Windows Server 2019, you will need to use a safe alternative.

To make the USB bootable via the command line, we have included a full step-by-step guide above. You can use that method as well. Therefore, we recommend that you utilize EaseUS Partition Master, which has a free trial and does the task efficiently. Try it out and see if you can solve the USB bootable problem on your own!