Resolving Office 2021 Installation Error 0x80070002: File Not Found

Follow these practical steps to address the error code 0x80070002 when setting up Office 2021:

1. Ensure a solid internet connection: Confirm your network is stable and uninterrupted throughout the installation.
2. Temporarily turn off antivirus: Antivirus programs can sometimes block the installation. Disable yours briefly to see if it helps.
3. Purge Windows Update cache: This often resolves the error code 0x80070002. Here’s how:
   • Hit Windows key + R, type 'services.msc', and press Enter.
   • Find and right-click the Windows Update service.
   • Choose 'Stop'.
   • In File Explorer, head to C:\Windows\SoftwareDistribution.
   • Delete everything in the SoftwareDistribution folder.
   • Return to Services, right-click Windows Update service, and click 'Start'.
4. Utilise the Office installation troubleshooter: Microsoft’s troubleshooting tool can help pinpoint and solve installation problems. It’s available for download on their website.
5. Try the Office Deployment Tool: If the above measures fail, the Office Deployment Tool might succeed. It lets you customise the installation. Download it from the Microsoft website and follow the provided guidelines.