When you install Office today, you will be prompted for office 16 Click to run extensibility component or office 15 Click to run extensibility component. If prompt 15 corresponds to office2013, if prompt 16 corresponds to office2016

Delete registry key

In fact, the way to solve the problem is very simple, we just need to delete the residual key of the system registry

Start → run → enter regedit, open the registry and locate to HKEY in turn_ CLASSES_ Root/installer/products , expand products

If it’s office 2013, that is, prompt office 15, find the items at the beginning of 0005, and then delete them all

If it’s office 2016, that is to say, prompt office 16, find the items at the beginning of 0006, and then delete them all

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