Installation

Get NIM running

Prepare the server, install the NIM Service, sign in to NIM Studio, and activate the installation. Most environments can complete this sequence in one session.

At a glanceDirect link to At a glance

Install NIM on Windows Server, confirm the NIM Service is running, open NIM Studio, set the Administrator password, and activate the supplied license code. Production environments should replace the installer-created self-signed certificate with an organization-provided certificate or Let's Encrypt after installation.

Before you start: Prepare a supported Windows Server with the required CPU, memory, and storage. Keep the installer and license code available.

Verify success: NIM Studio opens, the license error clears after activation, and the License status shows the installed license information.

Choose a tab, then follow the numbered instructions. Expand screenshots when you need a visual reference.

Prepare the serverDirect link to Prepare the server

Minimum requirementsDirect link to Minimum requirements

Compute2 CPU cores

Memory16 GB RAM

Storage120 GB free space

Operating system

Supported: Windows Server 2019 or later
Recommended: Windows Server 2025 or later

For new installations, choose the recommended version for a longer support lifecycle. Check the Microsoft Lifecycle Policy for support dates.

Configure endpoint-protection exclusionsDirect link to Configure endpoint-protection exclusions

During large mapping or role operations, endpoint protection can interfere with NIM processing. In your endpoint-protection product, exclude the following paths and executables:

C:\Program Files\Tools4ever\NIMC:\ProgramData\Tools4ever\NIMC:\Program Files\Tools4ever\NIM\node.exeC:\Program Files\Tools4ever\NIM\nim.exe

warning

NIM PowerShell connectors are not currently signed. Endpoint protection may also affect connector processing.

Install NIMDirect link to Install NIM

Run the NIM Windows installer. Use the recommended network settings: enable HTTP on port 80, leave HTTP-to-HTTPS redirection disabled, and enable HTTPS on port 443.
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Choose the installation folder. Keep the default location unless your organization has a documented alternative: C:\Program Files\Tools4ever\NIM\.
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Complete the installer. NIM installs the required components in the selected installation folder.

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The installer creates a self-signed certificate. After installation, use your organization’s certificate or Let’s Encrypt for production HTTPS. See HTTPS for configuration details.

Configure access and open NIM StudioDirect link to Configure access and open NIM Studio

Grant the required permissions. For Active Directory environments, grant the NIM Service account permission to read and write in Active Directory. Also grant the account local administrator access on the server hosting the service.
For more detail, see Group Managed Service Accounts for Active Directory.
Confirm the NIM Service is running.
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Open NIM Studio in a browser. On the NIM server, go to http://localhost:80/index.html. From another machine, use http://<hostname-or-ip-address>:80/index.html.
Set the default Administrator password. Enter a secure password for the Administrator account, then select Set Administrator Password.
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Confirm the Studio opens. NIM assigns the password and launches NIM Studio.
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Enter a license codeDirect link to Enter a license code

Use the license code supplied with your NIM purchase. For license-management details, see License.

Open the license settings. In NIM Studio, go to Configuration → Settings → License.
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Paste the complete license code. Include the BEGIN_CODE and END_CODE lines, then select Save.
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Validate the activation. The Status pane shows license information and the license error clears, enabling full NIM functionality.
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Installation completeOptionally configure additional service memory in step 5, or continue with the NIM workflow to learn how systems, data, and automation fit together.

Configure additional service memory (optional)Direct link to Configure additional service memory (optional)

The NIM Service memory limit defaults to 4 GB. If your workload needs additional memory, adjust the limit using the Service Settings guide. You can skip this step if the default meets your needs.

Review the server's available RAM and choose a limit that leaves memory for Windows and other services.
Back up the affected Registry key and record the current value before editing it.
Follow the Service memory limit instructions in Service Settings to adjust --max-old-space-size= at HKLM\SYSTEM\CurrentControlSet\Services\NIM\Config\args1.
Restart the NIM Service to apply the change, then confirm that NIM Studio opens and the service runs normally.

Step 1 of 5

Secure access

Consider enabling HTTPS and multi-factor authentication (MFA) as part of your installation setup.