Microsoft has officially retired the traditional phone-based activation system for Windows and Office that served as a reliable fallback for users for over two decades. Indeed, the "slui 4" command ...

Microsoft officially ended telephone activation for Windows on December 3, 2025, requiring users to activate through an online portal instead. PCWorld notes discrepancies between Microsoft’s actions ...

Phone activation for Windows has been discontinued. You'll have to use an online portal to activate Windows. The portal requires a Microsoft or business account. Microsoft has typically offered a few ...

Windows 10 product usually works with Windows 11, but the problems occur if your Windows 10 license is an OEM license (tied to original device hardware and not transferable) rather than a Retail ...

Microsoft has released the KB5074105 preview cumulative update for Windows 11 systems, which includes 32 changes, including fixes for sign-in, boot, and activation issues. KB5074105 is an optional ...