Forum Discussion
Windows 11 update error encountered when upgrading from Windows 10
Is there a way to fix this error when I was trying to upgrade my laptop from Windows 10 to Windows 11, it says: Windows 11 Setup Setup has encountered a critical error Sorry, we're having trouble...
That “Setup has encountered a critical error (0x80888002)” thing is super common when you upgrade from Win 10. It’s usually caused by missing or corrupted install files.
Here’s what worked for me:
- Disconnect from the Internet (Wi-Fi + Ethernet)
- Mount your Windows 11 ISO manually → run setup.exe
- When it asks to check for updates, choose “Not right now”
- Let it upgrade offline — no more Windows 11 update error 🎉
After it finishes, reconnect and run Windows Update to grab drivers.
Microsoft ref: Troubleshoot problems updating Windows