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 ...

A glitch with Microsoft’s activation servers appears to be disrupting many users’s PCs, as Windows 10 erroneously reports their systems as either un-activated or downgraded from Windows 10 Pro to ...

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

Microsoft has shared a workaround for customers experiencing 0xc004c003 activation failures on Windows 10, version 2004 and 20H2 devices after installing the January 2021 monthly "C" release KB4598291 ...

Microsoft is working on a fix for a bug in its activation server that has caused Windows 10 Pro machines to report that their license has not been activated. The issue was causing panic for some ...