The Software Licensing Service determined that the specified Key Management Service (KMS) cannot be used. What causes Windows Activation Error 0xC004F015? There can ...

Windows Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. 1] Are you using the right product key? Make ...

When Microsoft first launched the Windows operating system, installing it was only a matter of copying the program onto a disk. You didn't have to verify your copy of Windows. Starting with Windows XP ...

At least for now, though, it seems like this change will only apply to future Windows versions. We were able to activate a fresh Windows 11 Pro 22H2 install with a Windows 8 Pro product key as of this ...

Facepalm: Microsoft is investigating a new activation issue that is affecting many Windows 10 and 11 PCs. The problem seems to have cropped up last month after the company pushed out an update to plug ...

The Windows activation loophole has now been closed by Microsoft, so you’ll have to buy a legit Windows 11 key. The Windows activation loophole has now been closed by Microsoft, so you’ll have to buy ...