go here: https://support.microsoft.com/en-us/help/402843...
Run the troubleshooter aka the fixit tool.
Try this page for missing MSI errors: https://discussions.apple.com/docs/DOC-6562#msi
Requires removing itunes64.msi from the registry
I get a itunes64.msi error when trying to update or uninstall Itunes on my Windows 10 PC
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Anonymous
I tried a bunch of things that I saw on older posts but none helped. Any advice?
Windows for home | Windows 10 | Files, folders, and storage
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Anonymous
2018-08-05T03:38:39+00:00
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Anonymous
2018-08-05T03:14:36+00:00 I want to update Itunes but when I try it gives me a popup box that it can't find itunes64.msi, which apparently is needed to either update or uninstall itunes (to then install it fresh).
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Anonymous
2018-08-05T03:32:46+00:00 The first step is to uninstall Itunes, but I cannot do that b/c I get the error there too...
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Anonymous
2018-08-05T03:13:48+00:00 Hello, I see that you are having trouble with getting the proper iTunes. I assume that you have a 64 bit version of Windows. You may be able to check by right clicking on the Windows button on the bottom left and selecting "Systems". If it says you have a 64 bit Operating System, you have downloaded the right thing and there is nothing to worry about.
Hope this helps!
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Anonymous
2018-08-05T03:12:35+00:00 Hello Michael. What exactly is the issue? You did not really post an error or any issue.