stop windows update from creating temporary files on network drive

We are running windows updates on all of our 2008 R2 servers via WSUS.  WHen updates get installed, a series of temp folders gets created in our large network share that is attached to one of the servers. Around 10-15 folders get created with names like "9e531b2f-dc7f-4caf-8241-f629e790691d" and "MSI40763.tmp".