System Security Virus

System security messages pop up every 5 minutes or so, it wont let me download any malware programs, or go to any sites for help. My sytem restore, disk defrag, and task manager are also out. I just want this virus off of my computer. PLEASE HELP. I am not a computer genius, so please make it simple for me.

Please download Ice Sword from HERE

1. Download the zip to your desktop and extract it.
   
2. Open the Ice Sword folder and then launch IceSword.exe.
   
3. Then look in the left hand bottom of the program and press "Registry"
   
4. When the registry list opens, drag the line between the two windows so you can see which registry hive you need.
   
5. Next, open the HKEY_LOCAL_MACHINE, and navigate to the following key:
   
   HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
   
   
6. Now look in the right side pane for two run values that are just random numbers.
   
7. Once you have found the value(s), right click it and press "Delete"
   
8. Okay the prompt and close IceSword.