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This can happen both with the OEM licenses and with the ESD ones of Windows 10 of which I had spoken in the past (on how to buy Windows 10 for a few Euros). In the case where a clean installation was made by inserting a product key that we purchased online or recovered somewhere, or if Windows 10 was preinstalled by the PC manufacturer, if after a while the message appears “ Activate Windows 10“, then the most probable reason is that i The code used for initial activation has expired or been used too many times. Activate Windows 10 after clean installation A reason for the possible problem with the activation of Windows 10 following an update may therefore be to have used a pirated and non-regular copy of Windows 7 or Windows 8.1 (although more often the pirated copy is practically absorbed into the system becoming then adjust).
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This applies both in the case of a Retail copy of Windows 7 or Windows 8.1 (ie that it was purchased separately from the PC), and in the case of an OEM license, ie if Windows 7 or 8 were pre-installed by the manufacturer of the PC. In the event that one was made update Windows 7 or Windows 8.1 to Windows 10 (which can still be done for free), the activation of the previous version of Windows is transferred to the new one automatically. It, therefore, takes a different license for each computer used and it is not possible to use the same code, for example, for all home or office computers (unless it is a type of license that allows it).Īlso, in the Microsoft license agreement, it is possible to read that “ The activated activation does not guarantee that the software is original or has a regular license“, which is the case in which Windows 10 is activated in a non-regular and legal way, with a counterfeit product key.Īctivate Windows 10 after updating from Windows 7 or Windows 8 What is important to know about the use of Windows 10 under the Microsoft license terms is that it is not possible to use the same Product Key on two different computers, including virtual machine installations. Under the Microsoft license terms, you can use Windows 10 only if it is activated via a regular and original product key.
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