---
title: "Fixing Windows Activation Issue 0x803FA067"
description: "This error commonly appears when switching from Windows Home to Pro, or when trying to activate Windows again after a significant hardware change."
url: https://help.activekeys.com/en/articles/4-fixing-windows-activation-issue-0x803fa067
collection: "Windows Troubleshooting"
updated: 2026-05-22
language: en
---

# Fixing Windows Activation Issue 0x803FA067

This error commonly appears when switching from Windows Home to Pro, or when trying to activate Windows again after a significant hardware change.

#### 🔧 **How to fix error 0x803FA067**

**Disconnect from the internet**  
Temporarily disable Wi-Fi or unplug the Ethernet cable.

**Manually enter your product key**  
Go to:  
**Settings > System > Activation > Change product key**  
Enter the key you received and continue.

**Reconnect to the internet**  
After the key is accepted, turn your connection back on and restart the PC.

🛠 **Other helpful checks**

**Activated on another PC?**  
If your key is transferable, you may need to remove it from the previous device before using it on a new one. Make sure it’s only in use on one device at a time.

Reactivating after a hardware change?  
You can try reactivation through your Microsoft account:  
**Settings > Activation > Troubleshoot > I changed hardware on this device recently**