Guides and tips

Between Office 2021 and Office 2024, the functional gap is narrower than commonly claimed: virtually the same applications, the same formats, the same hardware requirements, and the same list of supported operating systems. The real turning point is the end of support for Office 2021, set for October 13, 2026, compared with October 9, 2029, for Office 2024.

Windows 10 reached end of support on October 14, 2025: your PC will continue to work, but it will no longer receive monthly security updates. Here’s how to check whether your machine can upgrade to Windows 11, what the ESU program (consumer or commercial) actually provides, and how to decide without rushing or buying something you don’t need.

Entering a Windows 11 product key takes two minutes when it matches the installed edition, but becomes confusing when it does not. Here are the two methods that work, the check to perform beforehand, the remaining options since phone activation was discontinued, and what to do about the watermark that remains visible.

Windows 11 Home and Windows 11 Pro share the same core system, interface, and basic security: only around a dozen features set them apart. Here’s what they are, what they actually do, and how to determine whether you need them before paying the difference.

Office 2024 and Microsoft 365 install the same software on your desktop, but they are based on entirely different licensing models. One is paid for once and remains fixed, while the other renews and evolves: here’s how to determine which one suits your actual needs.

Equipping three computers with operating systems and office software can cost up to twenty times more depending on the purchasing method. Microsoft 365 subscription, individual perpetual licenses, volume licensing, or a license intended for 3 devices: the actual cost of each option, prices recorded on August 20, 2026, and what the displayed price doesn’t tell you. Starting with the end-of-support dates.