Ratgeber
Project or Visio: which program for which task?
Microsoft Project plans schedules and resources, Visio draws diagrams. Using examples, this comparison shows which program you need and when both are worthwhile.
5 min read
Guides
Guides on software licences
Buying advice, step-by-step guides and background on Windows, Office, Project and Visio – clearly explained by the Keychannel team.
Results for “Pro” · 13All articles
- Ratgeber
Software licence types explained simply: OEM, consumer, volume and subscription
OEM, consumer licence, volume licence or subscription: how the licence types differ, and how the product key and digital licence relate to each other.
7 min read - Project
Buying Microsoft Project: Standard or Professional, 2021 or 2024
Project Standard or Professional, 2021 or 2024? This guide explains the differences, the end of support dates and what to consider when installing alongside Office.
6 min read - Office
Office end of support: 2016, 2019, 2021 and 2024 at a glance
Office 2016 and 2019 have not received security updates since October 2025, and Office 2021 follows on 13 October 2026. All dates and your options at a glance.
7 min read - Office
Office Professional Plus or Standard: which edition do you need?
Standard or Professional Plus? We show which programs both Office editions from 2016 to 2024 include and when the larger edition is worth it.
6 min read - Windows
Finding your Windows product key: how it works on Windows 11 and 10
How to find your Windows product key on Windows 11 and 10: via PowerShell, with slmgr and in Settings – and why often no key is shown at all.
5 min read - Windows
Windows 11 Home or Pro: the differences and which edition you need
Home or Pro? The differences in Windows 11 in one table, guidance by type of user, and how to move from Home to Pro without reinstalling.
5 min read - Windows
Buying a Windows 10 key in 2026: Home or Pro – is it still worth it?
Is a Windows 10 key still worth it in 2026? We show who Home or Pro makes sense for, what the end of support means and when Windows 11 is the better fit.
5 min read - Office
Finding your Office product key: what is possible and what is not
You cannot read out the full Office key on your PC. We show what OSPP.VBS reveals, where the full key can be found and how to store it safely in future.
6 min read - Office
Buying Office 2024: editions, new features and buying tips without a subscription
Office 2024 is the current one-off purchase version without a subscription. We show what Standard and Professional Plus include, what is new and what to look out for when buying.
7 min read - Visio
Buying Microsoft Visio: Standard or Professional, purchased licence or subscription
Which Visio edition suits you? This guide compares Standard and Professional, shows the end of support dates and puts the Visio subscriptions into context.
6 min read - Office
Activating Office: installation and activation with a product key
How to install and activate Office 2016 to 2024 with your product key: from downloading the setup and online activation through to activation by telephone.
8 min read - Windows
Activating Windows 11 and 10: instructions, commands and error codes
How to activate Windows 11 and 10 with a product key: via Settings, during installation or by command. Plus phone activation and the most important error codes.
6 min read