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If you receive an error message when trying to activate Windows 10 that Windows 10 could not be activated, this message may help you. Maybe you upgraded to Windows 10, or you installed Windows 10 cleanly, or maybe even your Windows 10 product key blocks a clean installation after the upgrade.
Windows 10 product key does not work
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The way to get there is to switch from Windows 7 or Windows 8.1 to Windows 10. If you clean Windows 10 directly and use your previous key, it will not work.
Windows 10 cannot be enabled
If you upgraded from Windows 7 SP1 or Windows 8.1 Upgrade to Windows 10 for free and received Windows 10 not enabled, try this :
Open the Settings > Update and Security > Activation application. Select Go to Store and check if a valid license is available for your device. If no license is available, you must purchase Windows in the shop. This article shows you how to check, activate or modify the activation state of Windows 10.
If your key is not accepted and activation fails, you will receive error messages such as :
The activation server has determined that the specified key is locked
Windows cannot currently be activated. Try later
We were unable to activate Windows
(4) 0x8004FE33
If you tried to activate your copy of Windows on the Internet and failed with one of the following error codes, for example, the error code 0x8004FE33, 0x80004005, 0x8004FE33, 0x8004FE33, you can follow this Windows activation tutorial.
Microsoft also described some scenarios. See which one applies to you and follow the suggestions.
Error 0xC004F061 – You updated Windows 10 but did not install a previous version or the correct edition of Windows
If you see the error 0xC004F061 when you try to activate Windows 10:
You are using a product key to upgrade to Windows 10, but an earlier version of Windows has not been installed on your PC. To upgrade, you must already have Windows 8 or Windows 7 installed on your PC.
If you have formatted or replaced your hard disk, you cannot use a product key to upgrade to Windows 10. You must install your previous version of Windows and reinstall Windows 10.
Error 0xC004C008 – A copy of Windows may be installed on multiple PCs
If you have installed a copy of Windows on more than one PC, activation may not work because the product key has already been used on a different PC or is used on more PCs than Microsoft’s license terms allow.
If your product key is used on more PCs than the terms of the Microsoft software license allow, you must purchase a new product key or a copy of Windows for each of your PCs to activate it.
Another version of Windows or the product key may have been used in a repair
If you took your PC to a repair shop or to someone who builds and repairs PCs, another version of Windows may have been installed to perform a repair. If another product key was used for your PC during the repair, it may be blocked if it is used on more PCs than the terms of the Microsoft software license permit.
If Windows was activated before your PC was repaired or rebuilt, entering the product key that came with your PC or the original version of Windows can solve the following problems.
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