Hi Victor M,
Thank you for sharing the details of your situation.
Based on the information provided, it appears your Windows account no longer has administrator privileges, which can prevent certain actions such as running tools as admin or accessing Netplwiz. In addition to Q&A Assist's answer, here are some possible steps that you can try to resolve this without reinstalling Windows or losing your existing Siemens TIA Portal licenses:
Restore admin rights using Safe Mode
- Hold Shift, then select Start > Power > Restart
- Navigate to Troubleshoot > Advanced options > Startup Settings
- Select Restart, then press 4 to enter Safe Mode
- On the sign‑in screen, choose Administrator (no password required in most cases)
- Press Win + R, type
netplwiz, and press Enter - Select your user account > Properties > Group Membership
- Choose Administrator, then apply changes
- Restart Windows normally
After admin access is restored, for security, please disable the temporary built‑in Administrator account: net user administrator /active:no
Additional checking steps that you can try if the issue persists:
- Press Win + R, type
services.msc - Locate Automation License Manager
- Ensure:
- Startup type: Automatic
- Service status: Running
If needed, updating the Automation License Manager to the latest supported version can also help restore license detection.
Let me know if you need further assistance, feel free to ask me by clicking "Add Comment" or "Add Answer" if you cannot add comment so your response will be visible. Thanks for your effort.
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