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This post shows how to open links from Word 2016 in Chrome instead of IE on Win 7.
Versions Used
Windows 7 SP1
Microsoft Office Home and Business 2016
Chrome Version 74.0.3729.157 (Official Build) (64-bit)
Steps
Step 1: Click Windows (Start)
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Step 2: Click Default Programs
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Step 3: Click Set program access and computer defaults
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Step 4: Expand Custom
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Step 5: Choose a default web browser
A. Click Google Chrome
B. Click OK
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Reference