In Windows Disk Cleaanup, I show 184,195 K  in Compress Old Files box that will not clean. I have tried everything I know but no luck. I'm sure it must slow my system down a bit, not to mention it frustrates the heck out of me. Can anyone help please ?

its my understanding thats how much space you would save if you compressed your hard drive. nothing really to worry about but if it bothers you do this:  

• 1. Type Regedit in Start - Run
  
• 2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Volume Caches
  
• 3. Expand the Volume Caches folder and select the "Compress Old Files" folder
  
• 4. Delete all entries in the Compress Old Files folder
  
• 5. Reboot
  
• 6. Run Disk Cleanup and you wont see the compress old files anymore.