Hi Balaji,
A Domain user account enables the service to take full advantage of the service security features of Windows and Microsoft Active Directory Domain. To resolve your concern, please follow the steps below to ensure that its running and set as "Automatic":
- Right-click on start menu, click on search, and type services.msc.
- Look for Workstation.
- Right-click on Workstation and select Properties.
- On the Startup type drop-down, select Automatic.
- Click on Apply and click OK.
After following the steps above, try to remove the Domain account on your device.
Let us know if you find this helpful.