Over time we have all experienced the slowness of WSUS increase and wondered what if anything can be done about it. Running the WSUS cleanup wizard is a good start but if you want to go that bit further then you should take a look at the WsusDBMaintenance.sql script that Microsoft have provided. The WSUSDBMaintenance script is a T-SQL script that can be run by SQL Server administrators to re-index and defragment WSUS 3.0 databases. It is available from here It only took a few minutes to run in my environment and I now schedule it to run once a month to keep WSUS ticking along nicely