Here I keep my install media ready. There are some issues that if you install Office and need to install an Office service patch but that varies with the Office version.,
Plan ahead.
I am currently running Windows 7 on my laptop and thinking about taking advantage of the free upgrade to Windows 10 that is being offered. I am using an older version of Microsoft Office Apps. Excel, OneNote, Outlook, PowerPoint and Word are all the 2010 release. Will these be retained and supported should I take the upgrade, or would I be required to purchase a new Microsoft Office package?

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