Solution:
Step 1: Open CMD as Admin
Step 2: Write the following commands and hit enter
A: cd "\Program Files\Common Files\microsoft shared\ClickToRun"
B: OfficeC2rclient.exe /update user updatetoversion=16.0.13801.20266
Step 3: Disable office update open word or excel or ppt - Goto Files - Account - Update Options - Disable Updates