What you’re seeing
- Enrollment fails with 'This device is already enrolled. You can contact your system administrator with the error code 8018000a'.
- The device does not appear in the Intune admin center under the company's devices.
- Adding a work account or joining Entra ID is refused on a PC that seems unmanaged.
- The error appears on a laptop that was previously used by another employee or another company.
Common causes
Every environment is different, but these are the causes our engineers find most often:
- A different user already enrolled this device in MDM, and that enrollment still exists on the PC.
- Leftover enrollment records remain on the device after an incomplete removal from Intune.
- The device is enrolled in another management service, such as a previous employer's tenant.
- A stale device object in Entra ID is still tied to the hardware.
- The device was enrolled through Group Policy auto-enrollment under one account while another user tries to enroll it.
Why it matters
A device stuck in this state cannot receive company policies or apps, which leaves it outside your security controls. That can mean no enforced encryption, no compliance checks and no ability to remotely wipe it if it is lost. Repurposed laptops are especially affected, so handing equipment from one employee to another becomes slow and frustrating. If a device is still registered to another organization, it also raises questions about who can control it.
How AskTechGurus fixes it
Skip the trial and error. A certified engineer works on your actual system, finds the root cause, and fixes it properly.
Tell us what’s happening
Submit a ticket in about two minutes. Paste the error, describe what changed, and pick your tier. No charge to submit.
A certified engineer diagnoses it
A vetted, US-based systems engineer claims your ticket, usually within minutes during business hours, and investigates over a secure remote session you can watch and end at any time.
Fixed and verified with you
The engineer resolves the root cause and confirms with you that it’s working. You don’t just get a workaround, and you get a plain-English summary of what was wrong.
Pay only when it’s resolved
Fixed price from $99, invoiced only after you approve the fix. If it isn’t resolved, you don’t pay.
Frequently asked questions
Why does it say enrolled when we can't see it in Intune?
The enrollment the device remembers may belong to another user, another tenant, or a record that was only partly removed. Intune shows nothing because the leftover enrollment is not one your tenant recognizes.
Do we need to wipe the laptop?
Not always. Removing the leftover enrollment can be enough, though a reset is sometimes the cleanest path for a reassigned device.
Can AskTechGurus clear this up?
Yes. A certified US engineer works on the device and your tenant through a remote secure session, starting at $99, and you pay only when enrollment succeeds.