Think you need a CD or USB drive to install Windows 10? Think again! You can actually do it straight from your computer’s hard drive. This method is super handy if you don’t have a spare USB or CD lying around. You’ll basically use a tool from Microsoft to download Windows 10, then create a virtual drive to kick off the installation process. Follow these simple steps, and you’ll be running Windows 10 in no time!
How to Install Windows 10 Without CD or USB
This guide will walk you through installing Windows 10 on your computer without needing a CD or USB drive. By the end of this tutorial, you’ll have Windows 10 up and running directly from your hard drive.
Step 1: Download the Media Creation Tool
First, download the Media Creation Tool from Microsoft’s official website.
This tool will help you download the Windows 10 installation files. Go to the Microsoft website, find the Media Creation Tool, and click the download button. Save the file somewhere you can easily find it, like your desktop.
Step 2: Run the Media Creation Tool
Run the Media Creation Tool you just downloaded.
Open the file you saved. A window will pop up with a series of prompts. Follow the instructions carefully, and make sure to choose the option that lets you create installation media for another PC.
Step 3: Choose ISO File Option
Select the ISO file option when asked how you want to create the installation media.
This step is crucial. By selecting the ISO file option, you’ll be able to create a virtual drive on your computer. This virtual drive will act like an external drive, allowing you to start the Windows 10 installation.
Step 4: Download the ISO File
Download the ISO file to your computer.
The Media Creation Tool will now download the Windows 10 ISO file. This may take some time depending on your internet speed, so be patient. Make sure you have enough free space on your hard drive.
Step 5: Mount the ISO File
Mount the ISO file once the download is complete.
Right-click the ISO file and select “Mount.” This will create a virtual drive on your computer. You can treat this virtual drive just like any other drive on your computer.
Step 6: Run the Setup File
Run the setup.exe file from the virtual drive.
Open the virtual drive where you mounted the ISO file, and double-click on the setup.exe file. Follow the on-screen instructions to install Windows 10.
After you complete these steps, your computer will restart several times and go through the setup process. You’ll need to choose your language and region, connect to Wi-Fi, and sign in with your Microsoft account. Once that’s done, you’ll have a fresh installation of Windows 10 ready to go!
Tips for Installing Windows 10 Without CD or USB
- Free up Space: Ensure you have enough free space on your hard drive to download and install Windows 10.
- Backup Data: Always back up your important data before starting the installation process.
- Stable Internet: A stable internet connection is crucial for downloading the ISO file.
- Check Compatibility: Make sure your computer meets the minimum requirements for Windows 10.
- Keep Your Product Key Handy: You might need your Windows 10 product key during the installation.
Frequently Asked Questions
Can I install Windows 10 without any external media?
Yes, you can install Windows 10 directly from your hard drive using the Media Creation Tool and an ISO file.
Is this method safe for my computer?
Absolutely. This method is provided by Microsoft and is perfectly safe as long as you follow the steps correctly.
How much space do I need for the ISO file?
You’ll need at least 8GB of free space to download and mount the ISO file.
Will I lose my files during the installation?
It’s always a good idea to back up your files before installing a new operating system, just to be safe.
Can I use this method to upgrade from an older version of Windows?
Yes, you can use this method to upgrade from Windows 7 or 8 to Windows 10.
Summary
- Download the Media Creation Tool.
- Run the Media Creation Tool.
- Choose ISO file option.
- Download the ISO file.
- Mount the ISO file.
- Run the setup.exe file.
Conclusion
Installing Windows 10 without a CD or USB is not just possible; it’s actually pretty straightforward once you know how to do it. By using the Media Creation Tool and an ISO file, you can get Windows 10 installed directly from your hard drive. This is perfect for those moments when you don’t have external media handy.
Remember to back up your data before you start and ensure your computer meets the system requirements. With these steps, you’ll avoid potential pitfalls and get Windows 10 running smoothly. If you run into any issues, there’s plenty of help available online, or you can always reach out to Microsoft’s support team.
So, what are you waiting for? Dive into the installation process and enjoy the benefits of Windows 10 today!

Matt Jacobs has been working as an IT consultant for small businesses since receiving his Master’s degree in 2003. While he still does some consulting work, his primary focus now is on creating technology support content for SupportYourTech.com.
His work can be found on many websites and focuses on topics such as Microsoft Office, Apple devices, Android devices, Photoshop, and more.