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#11
1. Let's confirm you have Win 10 on E (probably).
Using your Win 10 Boot CD, go to a command prompt and view E:\Windows\SystemApps as I said above (the drive letter may be different when using the CD). Can you see Microsoft.Windows.Cortana_cw5n1h2txyewy?
2. You need a bootable USB with Minitool Partition Wizard on it. you may need to use RUFUS to do that.
Rufus - Create bootable USB drives the easy way