Many of those who installed the latest build of Windows 10 from an unofficial ISO can not activate it. This is because Microsoft has disabled online activation from the release of Windows 10 build 10240 onwards.
Disabling the service will take place until the end of July of 2015.
If you are one of those facing the same problem, after installing Windows 10 build 10240, below we will mention some simple steps to do this without the need of third-party tools and cracks of dubious origin.
How to Enable Windows 10 build 10240
Open a bar window orders as an administrator.
To do this type in the start search cmd.exe. In the icon που θα σας εμφανιστεί στα αποτελέσματα της αναζήτησης, κάντε δεξί click and select “Open as administrator”
In the window that opens, type the following command and press it key Enter:
slmgr /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
Wait until a popup appears stating that the key has been installed.
Then type the following command and press enter
slmgr / SKMS kms.xspace.in
Again, wait for the popup
Finally, type the following command:
slmgr / ato
After you press the Enter key, Windows 10 build 10240 will be activated.
Activation is not permanent, but it will give you the opportunity to explore the new operating system until the Microsoft activation service works. The activation you performed with the above commands will be lost with the next installation.
Upgrading Windows to 29 July will allow you to properly activate your operating system after Microsoft's service will work properly.
