From 14 October 2025, Windows 10 Home, Pro, and Education are out of support: no security patches, no feature updates, and no assisted support from Microsoft for that baseline. Attack surface and compliance drift grow the longer estates linger.
- Confirm device-by-device readiness; use tools such as Microsoft PC Health Check where appropriate.
- Budget refresh cycles for hardware that cannot certify for Windows 11 — do not plan around unsupported OS builds.
- Turn the deadline into a phased programme: discovery, pilot, broad deployment, and validation with clear owners.
The downloadable PDF expands this into the full Dell guide structure.