Empty your IE cache and your other temporary file folders,
eg: c:\temp, c:\windows\temp or C:\Documents and
Settings\<name>\Local Settings\Temp (the path to your temp
folder will change depending on your name) - sometimes
programmes can be hidden in there - watch out for
mysterious *.exe files or *.dll files in those folders. http://www.mvps.org/winhelp2002/delcache.htm
Open Internet Explorer
Select Tools > Internet Options
In the Temporary Internet Files section, click the Delete
Files button
Check Delete all offline content, and then click OK
