Windows OS Upgrade Policy for DADAS Systems
Understanding why LTSC is different — and what to do when your IT department asks about Windows upgrades
Overview
Many organisations have IT policies requiring all Windows 10 devices to be upgraded to Windows 11 following Microsoft's end-of-support date for standard Windows 10 editions on 14 October 2025. However, not all Windows 10 editions share that deadline — Windows 10 LTSC (Long-Term Servicing Channel), used on DADAS industrial servers, follows a separate, extended support lifecycle. This article explains why that policy applies differently to DADAS industrial servers, what Windows LTSC is and why it is used, and how to plan a safe transition when the time comes.
Important — Contact WISE Group Before Making Any Changes If you are considering any changes to your DADAS server or client station installation — including OS upgrades, hardware replacements, or configuration changes — please contact us first. Do not proceed without speaking with your WISE Group representative, as unauthorised changes may void support agreements and cause system downtime.
Windows LTSC Is Not the Same as Standard Windows 10
The Windows version used on DADAS industrial servers is Windows 10 LTSC (Long-Term Servicing Channel). LTSC is a specialised Windows release stream designed for devices that require long-term stability rather than frequent feature updates. It is fundamentally different from the standard Windows 10 editions — Home, Pro, and Enterprise — that run on typical office PCs.
Standard Windows 10 editions are designed for general-purpose use and follow a regular feature update cycle. Windows 10 LTSC, by contrast, was designed specifically for industrial and critical systems. It does not receive feature updates — only security and stability patches — and carries a support lifecycle of up to ten years per release. Key distinction: The end-of-support announcement that prompted many IT upgrade policies applies to the standard editions of Windows 10 — not to Windows 10 LTSC. Windows 10 LTSC 2021, the version used on DADAS servers, is supported by Microsoft until 12 January 2032.
Why Blanket Upgrade Policies May Not Apply
Some organisations have implemented a blanket policy that all Windows 10 devices must be upgraded to Windows 11. This is a sensible approach for office PCs running standard Windows 10 editions, which are now out of support. However, it does not automatically apply to industrial systems running Windows 10 LTSC.
LTSC exists precisely because industries such as energy, manufacturing, and transport require stable, validated systems that cannot be changed as frequently as general-purpose workstations. Applying a blanket upgrade policy to LTSC-based industrial servers without understanding this distinction can lead to unnecessary disruption and risk.
If your IT department has flagged the DADAS server as requiring an immediate Windows 11 upgrade, we recommend sharing this article with them. It explains the difference between the standard Windows 10 end-of-support timeline (14 October 2025) and the Windows 10 LTSC support model, and provides the context needed to request an exemption for LTSC-based industrial systems from a blanket upgrade policy.
Our Policy on In-Place OS Upgrades
We do not recommend performing in-place operating system upgrades on DADAS servers. Upgrading the OS on a live industrial system — even from Windows 10 LTSC to Windows 11 LTSC — can introduce instability or compatibility issues that may cause system downtime or operational disruptions. Critical systems require validated, tested configurations, and an in-place upgrade bypasses that validation process.
We also strongly advise against installing standard Windows 11 editions (Home, Pro, or Enterprise) on DADAS servers. These editions are not validated for industrial use and may cause instability or reduced system reliability. Only Windows LTSC editions are supported on DADAS servers.
Our recommended approach for transitioning to Windows 11 LTSC is to supply a new industrial server, preloaded with Windows 11 LTSC and the current DADAS software, ready for deployment. This ensures a clean, validated configuration and eliminates the risk associated with in-place upgrades.
Who Performs the Upgrade? For DADAS server transitions, WISE Group performs the upgrade and validation — this is not a customer self-service process. WISE Group will supply the new server, install and configure the DADAS software, and carry out full system verification before handover. For some system types, on-site attendance by a WISE Group engineer is required to complete installation and commissioning sign-off. Your WISE Group representative will confirm what is required for your specific system and provide a project timeline.
Servers and Client Stations Are Treated Differently
It is important to distinguish between DADAS servers and client stations, as the upgrade guidance differs between them.
Servers run Windows LTSC and should only be transitioned to a new LTSC version through a hardware replacement, as described above. In-place upgrades and non-LTSC Windows editions are not supported.
Client stations — the desktop or mini-PC units used to access the DADAS server through a web interface or dedicated client software — run standard Windows editions. These follow the normal Microsoft upgrade path and should always be kept on the latest supported version of Windows. If an older client PC does not meet the hardware requirements for Windows 11, it should be replaced with a newer model that does.
Planning Your Transition
To minimise disruption, we recommend aligning any server hardware replacement with a planned maintenance visit, such as a scheduled sensor verification or annual maintenance window. This allows the new server to be installed, configured, and validated during a period when system downtime is already anticipated, avoiding unplanned operational interruption.
Existing DADAS servers running Windows 10 LTSC 2021 remain fully supported under Microsoft's extended LTSC lifecycle until 12 January 2032. There is no immediate requirement to replace them, provided security patching remains current. When your organisation is ready to transition, Windows 11 LTSC systems are available and can be supplied with DADAS pre-installed.
Key Takeaway
Windows 10 LTSC on DADAS servers is not subject to the same 14 October 2025 end-of-support deadline as standard Windows 10 — it is supported by Microsoft until 12 January 2032. In-place OS upgrades are not supported; the correct path to Windows 11 LTSC is through a new server deployment supplied and validated by WISE Group, timed to coincide with planned maintenance. Client stations follow standard Windows upgrade guidelines and should always run the latest supported version of Windows. Contact your WISE Group representative to discuss scheduling a server transition that fits your operational and maintenance calendar.
Do not attempt any OS or hardware changes independently. Always contact WISE Group Support first — you can reach us via the support portal or by contacting your account representative directly to discuss your specific system and arrange a managed transition.
For hardware and software specifications for new DADAS deployments, see DADAS Hardware & Software Requirements.