Start with the app, not the platform. The choice between Windows and Linux hosting is rarely about speed and almost always about one thing: whether a specific application ties you to Windows, and what that tie costs you every month.
CloudSpinx runs managed Windows Server hosting and Linux hosting for companies across Kenya and East Africa, and has no reason to prefer the more expensive answer. This is how we decide Windows vs Linux hosting for a client, and where the money goes.
What actually forces you onto Windows
Only a short list of things genuinely require Windows Server, and if none of them are in your stack, the decision is already made. A .NET Framework application the vendor supports only on Windows. Microsoft SQL Server. Active Directory as your identity backbone. An accounting or ERP package such as Sage or a QuickBooks Enterprise build with no Linux version. Remote Desktop for staff who share one Windows line-of-business app. That is most of it.
Plenty of what people assume needs Windows does not. Modern .NET, the cross-platform runtime that replaced .NET Framework for new work, runs on Linux, and that one catches teams out. If a developer tells you "it is a .NET app so it needs Windows", check the runtime before you pay for a license.
The Windows license is the real cost gap
The performance difference between a well run Windows box and a well run Linux box, on the same workload, is not what decides this. The license is. Windows Server is billed by the core, then again per user through Client Access Licenses, and again for Remote Desktop users on top. Linux carries none of that: no per-core charge, no CAL, no RDS license.
The floor alone is 16 cores per server, and Microsoft's suggested list price for those 16 on Standard is USD 1,176 before a single user connects. The CALs then grow with your headcount. We broke down what the Windows license actually costs, including the point where Datacenter starts to pay. The short version: treat the license as a cost that scales with your staff, not a one-off.
Where Linux wins for a Kenyan business
For the workloads most Kenyan SMEs actually run, Linux is the cheaper and calmer choice. A website or web app, a PostgreSQL or MySQL database, a mail server, a reverse proxy, caching, containers: all of it runs on Linux hosting with zero license cost.
No meter on cores, none on users.
On managed cloud or a dedicated server, that difference goes straight into the monthly figure, and it is the line on the quote that does not move when you hire.
| Windows Server | Linux | |
|---|---|---|
| License cost | Per core, plus CAL, plus RDS CAL | None |
| What forces the choice | .NET-only app, MSSQL, Active Directory, RDS, Windows-only ERP | Web apps, databases, mail, containers |
| Typical Kenyan SME fit | The one app that needs it | Almost everything else |
Windows vs Linux hosting, decided by the app
Do not pick the platform first. Pick it last, once you know the app. The whole decision comes down to a single question: does a business-critical application in your stack only run on Windows? If yes, host that workload on Windows and license it properly. If no, Linux does the same job for less.
Where a business runs both, and many do, we split them: the Windows-only app on a licensed Windows instance, everything else on Linux beside it, managed as one environment. You pay for Windows exactly where you must and nowhere else. When the answer really is Windows, we host that app the way it needs.
The expensive pattern is a Windows fleet that exists because one legacy app needed Windows years ago and everything else followed it there. Move the rest to Linux, keep the single Windows box that earns its license, and the bill shrinks by every license you no longer need. We would rather tell you that than sell you the bigger platform.
Send us the list of applications you run and we will tell you, honestly, which belong on Windows and which do not, with one monthly figure for the setup that fits. Use the quote form or reach us on WhatsApp at +254 713 403 044. The quote is free and commits you to nothing.