During Windows device enrollment, you may encounter the following error message:
Enrollment completed with status: Error There was an error calling The operation completed successfully. (0x80180026)
This error typically occurs when Windows believes the device is already managed by another MDM or when MDM enrollment has been disabled by policy.
Common Causes
The most common causes of error 0x80180026 include:
The device was previously enrolled in another MDM solution (Intune, SCCM, etc.).
A leftover registry entry indicates the device is externally managed.
MDM enrollment has been disabled via Windows policy.
Each of these scenarios can prevent the Swif agent from successfully enrolling the device.
Troubleshooting
Scenario 1: Previous MDM Enrollment Leftover
If the device was previously enrolled in SCCM, Intune, or another MDM, a registry entry may remain that blocks new enrollment.
Step 1: Open Registry Editor
Press Windows + R
Type:
regedit
Press Enter
Step 2: Navigate to the Enrollment Key
Go to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Enrollments
Step 3: Check the ExternallyManaged Value
Look for the registry value:
ExternallyManaged
If it exists and is set to:
1
Windows assumes the device is already managed by another MDM.
Step 4: Fix the Value
Either:
Delete the
ExternallyManagedvalue
orChange its value to:
0
After updating the registry, retry the Swif enrollment.
Scenario 2: MDM Enrollment Disabled
In some enterprise environments, Windows may have a policy that prevents MDM enrollment entirely.
This happens when the following registry value exists:
DisableRegistration
Step 1: Open Registry Editor
Press Windows + R, type:
regedit
Step 2: Navigate to the MDM Policy Key
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\MDM
Step 3: Check the DisableRegistration Value
If the following registry value exists:
DisableRegistration = 1
Windows will block all MDM enrollment attempts.
Step 4: Fix the Policy
Either:
Delete the
DisableRegistrationkey
orChange the value to:
0
After updating the registry, restart the device and retry enrollment.
Retry Enrollment
Once the registry issues are corrected:
Restart the device (recommended).
Run the Swif Windows enrollment installer again.
The device should enroll successfully.
Related Article
For complete enrollment instructions:
When This Issue Usually Appears
This error most commonly occurs when:
Migrating devices from Intune
Migrating devices from SCCM
Devices were previously managed by another MDM
A Windows policy blocks MDM enrollment