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How to move susdb.mdf for WSUS 3.0 in Windows SBS 2008

Feb 6

Written by:
Mon, 06 Feb 2012 10:24:15 GMT  RssIcon

How to move susdb.mdf for WSUS 3.0 SP1

WSUS on Windows SBS 2008 server can use a combination of Windows Internal Database and SQL Express. The susdb.mdf database can grow to be quite large and you may need to move it to a new location. follow the below steps to Stop the WSUS Service, Detach SUSDB from SQL Server then Move SUSDB.mdf and SUSDB_Log.ldf to the new location and finally Attach SUSDB to SQL Server again

Now onto the Solution...

1. Open a Command Prompt window, and run the following Commands to stop the WSUS service and IIS:
net stop wsusservice
iisreset /stop

2. If you don't already have Microsoft SQL Server Management Studio Express installed then go to this link and download it ot go to the next step:


3. Open the Microsoft SQL Server Management Studio Express while logged into the server as an Administrator and fill in the following information and then click connect:

  • Server type: Database Engine
  • Servername: \\.\pipe\MSSQL$MICROSOFT##SSEE\sql\query
  • Authentication: Windows Authentication
4. Once connected - expand the Databases node from the left pane and right click the SUSDB,
then select Tasks > Detach. The Detach Database window opens, select the 'Drop Connection' checkbox and click OK.

5. Open Windows Explorer and locate the SUSDB.mdf and SUSDB_Log.ldf - stored in C:\WSUS\SUSDB folder - Move it to a new location by using Copy and paste rather than move - just in case anything goes wrong while moving.

6. To reattach the database, right click on Database in SQL Server Management Studio Express and select Attach then on the Attach Databases page select the Add button and browse to the new location of the Database.

7. Finally start the WSUS and IIS services from a Command Prompt with the following commands:
net start wsusservice

iisreset /start

Note: Be sure to verify that the database is working by opening the WSUS Console.

If you have any problems following the above steps or the problem persists after successfully completing all the solutions please do not hesitate to Contact Us and one of our engineers will be happy to help.

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6 comments so far...


My system has "SQL Server Management Studio" (for SQL 2008). When I try to open ..\MICROSOFT##SSEE, I get errors. "Cannot connect". "A network-related or instance-specific error occurred...".
I don't see any documentation out there about installing SQL Server Management Studio Express and SQL Server Management Studio on the same machine. Looks like I need to repartition my C:

By Paul on   Fri, 04 May 2012 00:40:33 GMT

Why do you need them both? SQL Studio should have all you need to administer your DB

By Aizen on   Sat, 05 May 2012 22:17:31 GMT

This really helped out. Didn't need to install sql studio as it was already preloaded ftw

By David Moore on   Thu, 23 Aug 2012 14:42:46 GMT

Thanks for the article. In case anyone else runs into this, when I tried to reattach the DB I got an error. Turns out I didn't have permissions on the new DB file. Gave myself full control and it attached no problem.

By Matt on   Sat, 03 Nov 2012 01:33:56 GMT

Great Article.. Thanks for posting it...

By Omair on   Fri, 26 Apr 2013 00:51:17 GMT

Excellent article, thank you!

By James on   Thu, 01 Aug 2013 16:13:16 GMT

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