Fix: “We Couldn't Install Windows” – Installation Failed at Setup

If you're seeing the message “We couldn't install Windows” during setup, you’re not alone — this is one of the most common installation errors. The good news is: it's usually easy to fix with a few simple steps.

🔍 What Causes This Error?

This issue typically appears when:

• The Windows installation files are corrupted or incomplete

• There’s a problem with the USB drive or ISO image

• The hard drive or partition table has conflicting data

• The system doesn’t meet basic hardware requirements

✅ How to Fix It

1. Recreate the Bootable USB (Recommended First Step)

This solves 80% of cases.

• Download the Media Creation Tool from Microsoft:
  https://www.microsoft.com/software-download/windows10
  (or Windows 11 link for newer systems)

• Use it to create a fresh USB installer (at least 8 GB in size)

• Plug it directly into a USB 2.0 port (not 3.0) for better compatibility

2. Remove All Other USB Devices

Disconnect printers, external drives, or dongles that might confuse the installer.

3. Delete All Partitions During Setup

When you get to the drive selection screen:

• Click “Custom: Install Windows only (advanced)”

• Delete all visible partitions (make sure you’ve backed up your files!)

• Select the unallocated space and click Next

Let Windows create the partitions it needs from scratch.

4. Run a Memory Test (Optional)

Faulty RAM can also cause this error:

• Press Windows + R, type mdsched.exe, and run the Windows Memory Diagnostic

💡 Still Not Working?

No worries — just reach out:

1. Take a photo or screenshot of the error message

2. Email us at 📧 [email protected]

3. Let us know which version of Windows you’re installing

We’ll guide you step by step to complete the installation — guaranteed.

💬 Need Help Instantly?

Use Kingbot (bottom-right corner) to ask your question now