I just purchased Total Protection 2009 and removed the previous version, then used the McAfee removal tool, then deleted all the temp files in both directories. After installation Security Center is very slow to open and then when using Quickclean and choosing the shredder option I get a MISP Shell error then security center closes. I have uninstalled/reinstalled twice. When I use the standard windows deletion option Quickclean works fine. I have installed it on my wife's computer and she is running the same setup as I am. Windows Vista Home Premium 32bit with service pack 1. Please help as I love Mcafee products however having the errors and reduced functionality makes this less than desirable.