User unable to login due to "Trust Relationship between this workstation and the primary domain failed"
1. Sign into Local Admin (civic.adm)
2. Windows Search > About your PC
3. Select Advanced System Settings

4. Select Rename this PC (Advanced): Type in the local admin credentials
5. Navigate to System Properties > Computer Name, to rename this computer or change its domain or workgroup
6. Click Change

7. Change Domain to WorkGroup > Insert "A"
8. Save and restart the computer
9. Follow the same steps to go back to Titan.local domain