What version of Hoster do you have? Does it show any drives when you click the Detect drives button, or are there any other drives in the system?
If you have run all of the ASPI items, the problem might lie within your OS or your Motherboard drivers. Try updating the Motherboard drivers from your computer Manufacturers website.
After you have done this, then Run all of the Windows Updates, from
http://windowsupdate.microsoft.com/
Make sure that you get all of the updates, not just the Critical Ones, but all of the ones on the left under the 4 columns.