When you try to delete the \Temporary Internet Files\Content.ie5 folder, you receive:
The folder Content.ie5 is a system folder. If you delete it, Windows or another program
may no longer work correctly. Are you sure you want to delete this folder and move all
of it's contents to the Recycle Bin?
When you try to remove the folder from the Recycle Bin, you receive:
or write-protected and that the file is not currently in use.
To workaround the problem:
1. Shutdown and restart your computer.
2. Logon and empty the Recycle Bin.
3. Start Internet Explorer to recreate the Content.ie5 folder.