Windows could not start SQL Server Error Code 100048

So SQL Server on my dev machine is not running. I think this machine did an update today and when I came back it was restarted.I don’t use SQL Server on my laptop not unless I am doing development outside of the office so my SQL Server Service is set to start manually.

Tried starting the SQL Server (MSSQLSERVER) service  manually using services.msc but there are errors: Windows could not start the SQL Server on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 100048.


So it says check event viewer (eventvwr) for the details:


Yeah, there are some errors! Checked one by one saying check the previous error so I did. Says TCP port 1433 is already in use. We all know that port 1433 is used by SQL Server. See: 


Lets terminate that process so that using 1433. Lets check using netstat.

Open a command prompt using Administrator (Run as Administrator) and type: netstat –a –n –o | findstr 1433


Take note of the process ID. It is the number at the right most column. Take note of it and terminate it. Use:

taskkill –pid <ID>


taskkill –pid 7372 as seen in my example.

Now after terminating / killing the process, switch back to the Services console and start SQL Server.


You should be able to log-in in SSMS 🙂


Okay now, back to work!

Published by


John is currently creating digital assets that protects people and their future, a technical trainer and a full time geek specializing on development and deployment of innovations created with .NET framework on Windows platform as well as Windows infrastructure projects. He is the primary contact of the Philippine Windows Users Group, a contributor at the Microsoft Philippines Community forums and regularly conducts community sessions as well as other Microsoft technology events. John owns the Busy Saving The World Techblog.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s