Entra ID
Joined PCs vs Active Directory: Why Small Businesses Are Moving to Cloud Device
Management
For years, small businesses relied on traditional
on-premises Active Directory to manage computers and user accounts. It worked
well in an office-centric world where everyone sat inside the same building and
connected to the same server.
But work has changed.
With remote work, cloud applications, and Microsoft 365 at
the center of most small businesses, it’s time to reconsider how company
computers are joined and managed. That’s where Microsoft Entra ID comes in.
What Is the Difference?
Traditional Active Directory (AD) joined computers connect
to a local server in your office. That server controls logins, policies, and
permissions. This means that if your server decides to take a break, you and
your business might be too.
Microsoft Entra ID (formerly Azure AD) joined computers
connect directly to Microsoft’s cloud directory instead of a local server,
meaning as long as your employees can connect to the internet, they can
authenticate properly.
For many small businesses, this shift eliminates the need
for a physical domain controller altogether.
Key Benefits of Entra ID Joined PCs
1. No On-Prem Server Required
Entra ID removes the need to manage a domain controller in your office. That
means:
- No
server hardware to replace
- No
Windows Server licensing
- No
server backups to manage
- Fewer
points of failure
This reduces cost, complexity, and risk.
2. Built for Remote and Hybrid Work
Active Directory assumes employees are on the office
network. Entra ID assumes they’re anywhere.
Users can securely sign in from home, a job site, or while
traveling without needing VPN access just to apply policies or to authenticate.
Policies, security controls, and access rules apply wherever
the device connects to the internet.
3. Stronger Security with Conditional Access
Entra ID integrates directly with Microsoft 365 security features like:
- Multi-Factor
Authentication (MFA)
- Conditional
Access policies
- Device
compliance enforcement
- Sign-in
risk detection
You can require device compliance, block risky logins, and
enforce security standards without relying on the office network perimeter.
4. Easier Device Management with Intune
Entra ID-joined PCs are typically managed with Microsoft Intune.
This allows you to:
- Push
applications remotely
- Enforce
encryption (BitLocker)
- Require
antivirus and firewall settings
- Deploy
updates
- Remotely
wipe devices
All without touching the device physically.
5. Cleaner Employee Offboarding
One of the biggest benefits for small businesses is control during employee
turnover.
With Active Directory, disabling a user may not fully secure
a remote device if it hasn’t checked in with the office server. With Entra ID:
- You
disable the user in Microsoft 365
- The
device immediately loses access to company resources
- You
can remotely wipe company data
- You
can reset the device for reuse
This dramatically reduces risk when employees leave
unexpectedly.
6. Easier Device Reassignment
When transitioning a computer to a new employee, Entra ID makes the process
simpler:
- Reset
the device through Intune
- Re-enroll
it under the new user
- Apps
and policies automatically deploy
- No
complex domain unjoin/rejoin process
You don’t need to bring the device back to the office to
reconfigure it.
This is especially valuable for businesses with remote staff
or multiple locations.
7. Automatic Device Compliance
Entra ID allows you to require that devices meet security standards before
accessing company data.
For example:
- Is the
device encrypted?
- Is
antivirus running?
- Is the
OS up to date?
If not, access can be blocked automatically.
With traditional AD, enforcing this level of conditional
access is far more complex.
8. Seamless Microsoft 365 Integration
Most small businesses today run on Microsoft 365.
Entra ID joined PCs provide:
- Single
sign-on to cloud apps
- Automatic
OneDrive configuration
- Seamless
Teams and Outlook setup
- Better
integration with SharePoint
Users log in once, and everything connects automatically.
When Does Active Directory Still Make Sense?
There are instances where traditional AD still fits:
- Heavy
on-prem file servers
- Legacy
applications needing domain authentication
- Specialized
business systems
In some cases, a hybrid setup may be appropriate.
But for many small businesses moving toward cloud-first
operations, Entra ID alone is more efficient and secure.
The Bottom Line
Active Directory was built for another era, one where the
office was the center of IT.
Entra ID is built for modern business:
- Cloud-first
- Remote-friendly
- Security-driven
- Easier
to manage
- Lower
infrastructure cost
For small businesses, especially, moving to Entra ID joined
PCs simplifies IT management while improving security and flexibility.
If you’re still running a traditional domain server
primarily “because that’s how it’s always been done,” it may be time to
reevaluate.
Modern identity management isn’t simply a technical upgrade;
it’s a business advantage.
How do I join my PCs via Entra ID?
Short answer: It depends. There are several prerequisites to joining your
PC with Entra ID, but the most important is making sure your PCs are running
Windows Pro. A common mistake businesses make is buying consumer-grade PCs,
which are basically anything you would get from Best Buy or Amazon. These PCs
come with Windows Home by default, which means they lack critical business
features, including the ability to join via Entra ID. The only way to upgrade a
PC running Windows Home is to purchase an upgrade, but the process can be messy
because it involves creating new users with your company email.
The recommended way to avoid this headache is to purchase PCs directly from
manufacturers, since they offer the option to have Windows Pro pre-installed
and be ready to join during setup.
For PCs that are already running Windows Pro but may be joined to an Active
Directory Server via Azure AD, you are probably looking at a more involved
process that may require professional expertise to ensure the transition is as
seamless as possible. If that’s you, shoot us an email or give us a call, and
we would be happy to help you navigate the process well.
