Office error 0‑1012 typically occurs when the installer can't connect to Microsoft’s servers

Office error 0‑1012 typically occurs when the installer can't connect to Microsoft’s servers or download necessary files—often due to internet issues, firewall/antivirus blockages, or conflicts with leftover Office components. To fix it:

• Temporarily disable antivirus, firewall, VPN, or proxy


• Uninstall any existing Office version using Microsoft’s Office Uninstall Support Tool


• Ensure Windows is fully updated and reboot your PC


• Download a fresh Office installer from your copyright


• Right‑click the setup and select “Run as administrator”


• If it fails, repair Click-to-Run via Control Panel → Programs → Microsoft Office → Change → Repair


• As a last resort, create a new local administrator account and install Office from that profile

For complete step-by-step guidance, refer to this Office error 0‑1012 fix guide.