Fixing Error Code 0x80070005 During Office 2021 Installation

To address the error code 0x80070005 encountered during the installation of Office 2021, follow these steps:

1. Execute Installer as Administrator: Right-click the Office installation file and select 'Run as administrator' to provide the necessary privileges for installation.
2. Temporarily Disable Antivirus: Antivirus software can occasionally prevent proper installation. Disable your antivirus temporarily and attempt the installation again.
3. Verify User Permissions: Ensure your user account has administrative rights to install software. Check the settings in User Accounts to verify or adjust permissions.
4. Perform a Clean Boot: Conduct a clean boot of your system to shut down any conflicting software or services that might disrupt the installation process.
5. Utilise Microsoft’s Troubleshooter: Download and run the Microsoft Office Installation Troubleshooter to diagnose and possibly resolve installation issues automatically.
6. Repair or Reinstall Windows: If the issue persists, consider repairing or reinstalling Windows to address any systemic problems that could be affecting software installation.