To clear the System profile cache please perform the following steps:
1) In Windows Explorer, enable 'show hidden files and folders' under the 'View' tab and disable 'Hide protected operating system files'.
2) Log into the computer as local administrator and delete all files and folders located here: "C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5" and ignore / skip any files and folders that have errors during the deletion process.