New version

The new update problem can not work and open because a message appears to be related to WebViw2

Install WebView2 when the installer tells you to. Or install it separately. Search the forum. There have been many, many discussions about this, as recently as today.

How do I install it separately?

You did not search for the forum discussions, did you?

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or here Microsoft Edge WebView2 and Microsoft 365 Apps - Deploy Office | Microsoft Docs

I already downloaded it now, how do I transfer it?

And where should I go after I decompress?

How do you transfer what? From where? To where? If you are asking how you install WebView2, that is covered in the various links you have already been told about. That’s a Windows operating system question, not a Manager question.

The Windows desktop version of Manager requires Webview2 is installed
For why see How to add GST Calc worksheet - #14 by Patch
For how see New Update - #4 by Patch