Microsoft 365 Intune setup — manage Windows, iOS and Android devices
Microsoft Intune, as part of Microsoft 365, enrols and enforces policies on Windows, iOS and Android devices so your staff can work securely from anywhere; a sensible rollout fixes identity (Azure AD) and licences first, then phases device enrolment to avoid disruption.
Clear outcomes from a correct Intune setup
A working Intune deployment should let you control devices, apps and access without breaking users. For a 10–200 staff employer that means a few observable outcomes: consistent device compliance, conditional access tied to Azure AD, selective app distribution (Microsoft 365 apps, line-of-business apps) and the ability to wipe or quarantine lost endpoints. Operational benefits you’ll expect are fewer support calls for unmet access policies, centrally logged device state, and quicker onboarding for new starters.
Practical signs you’re done: devices show as ‘compliant’ in the Intune console, mobile apps are delivered via Company Portal or managed app deployment, and conditional access policies prevent email or SharePoint access from unmanaged devices. These are the items that reduce business risk and keep ISO/Cyber Essentials conversations straightforward.
Common blocks that stall setup
Most stalls come from identity, licensing or device diversity. The typical blockers are:
- Licensing mismatch — your tenant needs the correct Microsoft 365 or Intune licence assigned before features like app protection and conditional access work.
- Azure AD configuration — Intune depends on Azure AD; hybrid AD or poor sync rules create enrollment failures and duplicate identities.
- Legacy management on devices — machines still on old MDM/Third-party agents conflict with Intune enrollment and policy application.
- Network and proxy rules — restrictive firewalls or web proxies can block Company Portal and enrollment endpoints.
- User expectations and training — sudden forced enrolment without communication leads to refusal, shadow IT or lost productivity.
Technical errors often show as batch failures during automatic enrolment or grouped by device platform (Windows vs iOS). The NCSC has helpful endpoint security advice that clarifies which protections are essential when you deploy remote management tools; use that as part of your policy decisions (NCSC’s endpoints guidance).
How to unblock: a practical path to live
Fix identity and licences first, then pilot, then scale. A repeatable path that keeps users working looks like this:
- Verify licences and tenant readiness — confirm Intune licences are in place and Azure AD health is good.
- Design baseline policies — create a minimal set of compliance rules and a conditional access policy that protects email and SharePoint but allows managed devices.
- Pilot with a small cross-section — pick 10–20 devices across teams and platforms to validate enrolment, app deployment and support workflows.
- Roll out in waves — expand by function or location, not by device count alone; monitor support tickets and tweak policies between waves.
Operational details to pin down before you start: who owns device enrolment (IT or delegated admins), how lost/stolen devices are handled, and the naming/tagging scheme for devices in Intune. If you need help mapping licences to feature gates or want a rollout plan that links to staff training and change comms, a managed support partner can build and operate the pilot-to-scale process on your behalf — see our Microsoft 365 support page for an example of that service model: Microsoft 365 support page.
When switching from a different management solution, allow time for cleanup: remove stale device objects, ensure BitLocker and recovery key processes are documented, and test Conditional Access on a subset of VIP accounts before applying tenant-wide.
Related reading
- our microsoft 365 support for business guide
- Microsoft 365 security audit service: what UK SMEs need to know
- Microsoft 365 sensitivity labels — classify and protect documents across Office
- Cost of Microsoft 365 managed services — a practical guide for UK businesses
- Microsoft 365 backup service: a straightforward guide for UK businesses
FAQ
How long does Microsoft 365 Intune setup usually take for a 10–200 staff UK business?
Expect a pilot in 2–5 working days and a full phased rollout in 2–6 weeks depending on device diversity and whether you need hybrid AD fixes; complex migrations can take longer.
Do I need Azure AD Premium to use Intune features like Conditional Access?
Yes — Conditional Access and some enterprise identity features require Azure AD Premium (P1 or P2) to enforce device-based access controls rather than basic M365 accounts alone.
How much will a typical Intune setup cost an SME in the UK?
Typical one-off setup fees from an MSP range roughly from £500–£3,000 plus ongoing licences; exact cost depends on device count, complexity and whether you need hybrid AD remediation.
Can I move devices from an Intune trial tenant to my production tenant without downtime?
Direct migration of enrolled devices between tenants isn’t supported; plan to unenrol and re-enrol devices during a scheduled window to avoid extended downtime.
