Microsoft has officially retired the traditional phone-based activation system for Windows (and MS Office) that served as a reliable fallback for users for over two decades.

In this post, we will show you how to fix Windows Activation Error 0x80004005, License Activation (SLUI.exe) failed or Error 0x8004FE33, Acquisition of Secure ...

In the wake of Microsoft's Windows 10 launch, a one-year grace period was provided for users to activate the system using Windows 7 or 8.1 keys. This functionality, intriguingly, persisted into the ...

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

The method used to activate Windows for single-user licenses starting with Windows XP and Windows Server 2003. Bulk licenses to companies do not contain Windows Product Activation (WPA). When Windows ...