When I did the auto-upgrade from Win 8.1 Pro to Win 10 it installed Win 10 Home not Win 10 Pro. Why?
Is there any way to upgrade without losing all of my apps and data?
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When I did the auto-upgrade from Win 8.1 Pro to Win 10 it installed Win 10 Home not Win 10 Pro. Why?
Is there any way to upgrade without losing all of my apps and data?
What do you mean by "auto-upgrade"? If you mean an upgrade using Windows Update, all of your files and programs should still be there (and 8.1 Pro should upgrade to 10 Pro).
If you mean something else, how exactly did you do the upgrade?