Thanks again for your help, but now I have new problems. I'm missing a bunch of things in the start menu so I was able to find the system tools in windows explorer. There is an icon for a shortcut to system restore there, but when I select it, a box comes up that says webpage error, and asks if I want to debug the webpage (underneath this it says Line:22 Error: Access is denied). If I select Yes, a Just-In-Time Debugging box opens, and asks me to select a debugger from the list - this list is empty.
We had our computer set up of two of us can use it, and neither of us is the designated system administrator so I'm not sure why it says access denied. On the link you gave, it has steps to verify if you are the administrator, but I can't do that either because the Run... option is also missing from the start menu. Do you have any other ideas?