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How do I determine which Windows 7 installation disk I used to update
I have 3 computers, each with Windows 7 installed, using legally purchased disks. I wish to remove Windows 10 from a Dell Inspiron 15 laptop and re-install the Windows 7, but I don't know which disk to use. How do I determine which disk, and it required ID number, to use? Or does it make a difference?
Joeacusa