net logon service is not getting started and when I try to start it is showing error 87: parameter is incorrect

Question

net logon service is not getting started and when I try to start it is showing error 87: parameter is incorrect

Answer 1

Hi @Poodota, Kranthi (CA),

Welcome to the Microsoft Q&A platform!

Based on your description, you are experiencing a common problem with the Netlogon service. The "Error 87: The parameter is incorrect" message can appear for a number of reasons, but you can try a few steps to resolve it:

1. Make sure there are no typos in the command you use to start the service. Even a small mistake can cause this error.
2. Run System File Checker (SFC):

• Open a command prompt as an administrator.
• Type sfc /scannow and press Enter.
• Wait for the scan to complete and then restart your computer.

3. Check service dependencies:

• Open the Registry Editor (regedit).
• Navigate to HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Netlogon/.
• Double-click DependOnService and make sure it contains LanmanServer and LanmanWorkstation.

4. Reinstall the Client for Microsoft Networks:

• Go to Network and Sharing Center.
• Click your network connection and then click Properties.
• Uninstall and then reinstall the Client for Microsoft Networks.

5. Perform a clean boot:

• Open System Configuration (msconfig).
• Under the Services tab, check Hide all Microsoft services and click Disable all.
• Restart the computer and try to start the Netlogon service again.

---

Please feel free to contact me for any updates. And if this helps, don't forget to mark it as an answer.

Best,

Jake Zhang