How to Upgrade from Windows 10 to Tiny11 25H2 Without a Bootable USB (Step-by-Step Guide)

Looking to upgrade to Tiny11 25H2 but don’t have a spare USB drive? No problem! In this detailed tutorial, we’ll show you how to upgrade from Windows 10 to Tiny11 25H2 without using a bootable USB. All you need is a downloaded ISO file, the EasyBCD tool, and a few partition management steps to make this work smoothly.

Let’s go step by step and make sure everything is done right — and by the end, you’ll have a clean, lightweight, and fast installation of Tiny11 25H2 on your PC.


🔧 What You’ll Learn:

  • How to upgrade from Windows 10 to Tiny11 25H2 without a USB
  • How to create a virtual partition for ISO boot
  • How to use EasyBCD to boot from ISO
  • Final cleanup and tips after successful installation

🖥️ System Requirements:

  • Existing Windows 10 system (version 22H2 or similar)
  • Minimum 10 GB free disk space on C: drive
  • Internet access to download Tiny11 ISO and EasyBCD

📦 Software Needed:


🪜 Step 1: Download Tiny11 ISO and EasyBCD

Before we do anything with partitions, let’s get the necessary files.

  1. Download Tiny11 25H2 ISO from a trusted source.
    • This usually comes in a .zip format. Extract it using Windows Explorer.
    • After extracting, you’ll find a file with .iso extension.
      Keep this handy.
  2. Now, download EasyBCD from the official website:
    🔗 https://neosmart.net/EasyBCD/
    • Choose the non-commercial version.
    • Register with your name and email to get the download link.
    • Install EasyBCD after downloading.

💽 Step 2: Create a Virtual Partition (Fake USB Partition)

Since we are not using a real USB, we’ll create a virtual one using space from your C: drive.

Let’s move to the next step…

  1. Right-click on the Windows Start button → Select Disk Management.
  2. Locate C: drive, right-click → Choose Shrink Volume.
  3. Enter 10,000 MB (10 GB) and click Shrink.
  4. You’ll see a new Unallocated space.
  5. Right-click on it → Choose New Simple Volume.
  6. Name it Tiny11 during the setup → Finish.

🧠 This new partition will act as our virtual USB to load the ISO files.


📁 Step 3: Mount ISO and Copy Files

Now that we have the virtual USB ready, we need to fill it with installation files.

  1. Right-click on the Tiny11 ISO file → Choose Mount.
  2. Copy all the files from the mounted ISO.
  3. Paste them into the Tiny11 partition you just created.

This step ensures that the ISO contents are ready to boot directly from your hard disk.


⚙️ Step 4: Set Boot Entry with EasyBCD

Now let’s configure EasyBCD to boot into the Tiny11 installer.

  1. Launch EasyBCD (Run as administrator).
  2. Click on Add New Entry from the left panel.
  3. Under Portable/External Media, choose WinPE.
  4. Set the name as Tiny11.
  5. Click on the folder icon to browse to the partition:
    • Go to the Tiny11 partition → Open the sources folder.
    • Select the file named boot.wim.
  6. Click the Green Plus (+) icon to add the entry.
  7. A success message will appear:
    Tiny11 added to the boot menu successfully.

🔁 Step 5: Reboot and Begin Installation

We’ve done a good job so far! Now let’s install Tiny11.

  1. Restart your computer.
  2. On reboot, you’ll see a boot menu:
    • Select Tiny11 (the one you added via EasyBCD).
  3. The Windows setup will start.
  4. Follow the on-screen prompts until you reach the partition selection screen.

🛑 Important Tip: Do not delete the Tiny11 partition you created. This acts as your virtual USB. Only delete other partitions if you’re doing a clean install.


⚠️ Step 6: Backup and Format Partitions

Before proceeding with installation:

  • Back up your data from Windows 10.
  • If you want a fresh install, delete all partitions except the Tiny11 one.
  • Select the unallocated space → Click Next.

Tiny11 will now begin installing. Sit back and wait till it’s done.


🧹 Step 7: Cleanup the Temporary Partition

Once you’ve successfully installed Tiny11, the last step is to remove the extra partition.

  1. Right-click on Start → Select Disk Management.
  2. Locate the Tiny11 partition.
  3. Right-click → Select Delete Volume → Confirm.
  4. Now, extend your C: drive back:
    • Right-click on C: → Choose Extend Volume → Next → Finish.

Done! You’re now back to a single-partition system running Tiny11 25H2.


🧠 Bonus: Use the Tiny11 Configurator

After booting into Tiny11, look for the desktop app Configurator. It lets you:

  • Enable/disable Windows Defender
  • Turn Windows Update on/off
  • Install your preferred browsers
  • View system performance in Task Manager (which is now lighter than full Windows 11)

❓ FAQ – Tiny11 Installation Without USB

Q: Is Tiny11 safe to install?

A: Tiny11 is a lightweight version of Windows 11. While it’s great for older PCs, it’s not an official Microsoft build. Use it at your own discretion.

Q: Can I dual boot Tiny11 with Windows 10?

A: Yes, but in this tutorial we replaced Windows 10. To dual boot, install Tiny11 in a separate partition.

Q: Can I use this method for other ISOs?

A: Yes, this works for most Windows ISOs as long as you configure EasyBCD correctly with the boot.wim file.


⚠️ Disclaimer:

Tiny11 is a custom modified version of Windows and is not officially supported by Microsoft. This tutorial is for educational purposes only. Always back up your data before making system-level changes.


📌 Tags:

tiny11 upgrade, windows 10 to tiny11 without usb, install windows without bootable usb, easybcd tutorial, boot iso from hard drive, windows 11 lite installation

📢 Hashtags:

#Tiny11 #WindowsUpgrade #EasyBCD #NoUSBInstall #WindowsLite #Windows11Mod #TechTutorial #PartitionManagement


If this guide helped you upgrade to Tiny11, share your experience in the comments. And remember — always back up before major system changes. Happy upgrading! 💻✨

Visited 1,359 times, 1 visit(s) today

Emily Carter

Emily Carter

Emily is a Windows power user and technical writer from the UK. She has spent 7+ years in IT consulting, helping businesses migrate to new Windows versions, optimize performance, and solve common errors. Emily’s articles combine professional experience with step-by-step clarity, making even registry hacks accessible to everyday users.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.