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You can use Microsoft’s upgrade tool to install Windows 10 on your PC if you already have Windows 7 or 8.1 installed. How to Upgrade to Windows 10 from Windows 7 or 8 Once you know which method is going to work for you, proceed to one of the sections below to install Windows 10. This is a convenient solution for testing Windows 10 on a PC without purchasing it first.
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You can even purchase a Windows 10 license from the Store within Windows 10 to turn it into a properly licensed Windows 10 PC. You’ll see messages telling you your Windows 10 system isn’t licensed and needs to be activated, but it will be completely usable.
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