Resolve License Error: Nodelock file is read-only

Error: Update failed - The nodelock file is readonly

Issue:

You are unable to update your license because the nodelock file is read-only.

nodelock-readonly

Cause:

Windows has locked the file as read-only, blocking the update process.

Solution:

In Windows File Explorer, navigate to C:\ProgramData\AIMMS\Nodelocks.

Right-click the .lock file for the relevant license number and select Properties.

Uncheck the box read-only and click OK.

uncheck-read-only

If the error occurs again, follow the steps below to completely reset the license activation.

  1. In AIMMS, go to Tools > License > License configuration and click Deactivate.

    license-config

    deactivate

  2. Click Yes in the Deactivate Current License dialog that appears.

    deactivate-yes

  3. Follow the prompts in the Deactivation Wizard. A success notification appears.

    deactivate-success

    Exit AIMMS.

Note

If you cannot deactivate the license due to the nodelock, contact AIMMS Support and our support team can deactivate the license for you. Meanwhile, you may continue the steps below for an emergency activation which allows you to use your license for 7 days.

  1. In Windows File Explorer, navigate to the license files location at C:\ProgramData\AIMMS (or C:\ProgramData\Paragon Decision Technology for older AIMMS versions).

    Delete the relevant license files in the \Licenses and \Nodelocks subfolders.

    program-data

  2. Restart AIMMS and activate the license again.