To ensure you can type and check Arabic:
To install the Arabic language pack for Microsoft Office 2016, follow these steps to download and configure your display, editing, and proofing settings. 1. Download the Language Accessory Pack office 2016 arabic language pack install
Conflicting background update. Fix: Disable antivirus temporarily, then run C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe /update user To ensure you can type and check Arabic:
setup.exe /adminfile ArabicConfig.MSP