If you encountered a problem during the installation of a Microsoft Office program or if you are unable to start an office program,

Best solutions to fix this office installation error:
Temporarily disable windows defender to Solve installation office

Click windows start button, type in Windows Security
Open windows security window, Select Virus & threat in windows security window
Select Manage settings, under the Virus & threat protection
Switch Real-time protection to Off.
How to disable Antivirus software Temporarily

Open Antivirus application (McAfee or Norton or AVG) installed on the computer.
Select on settings and go to real time protection
Select Turn Off real time protection
Then, Navigate to Antivirus firewall and select Turn off Antivirus Firewall

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