C:\WINDOWS\TEMP\
MSI17047.LOG 8.72MB
C:\WINDOWS\TEMP\
MSI1e558.LOG 17.7MB
C:\WINDOWS\TEMP\
MSI2057.LOG 17.1MB
C:\WINDOWS\TEMP\
MSI27a28.LOG 17.4MB
I'm going to guess by the MSIXXXXX.LOG filename that they are MSI (Windows Installer) log files. This leads me to believe that you've either got the registry key for Installer logging set, or your group policy sets it.
If it's enabled; "This should be used only for troubleshooting purposes and should not be left on because it will have adverse effects on system performance and disk space. Each time you use the Add/Remove Programs tool in Control Panel, a new Msi*.log file is created."
Check out
http://support.microsoft.com/kb/223300