Why is it that everything I do on my user account seems to affect my dads separate account. We are both set as administrators to do the things we need to do but if I'm logged on and a program is running, he can't access the same programs. When I try to customize my desktops and remove unnecessary shortcuts, it affects his desktop as well. I am new to windows and would like to avoid these issues. These problems do not exist with my macbook and I'm wondering if it's my unfamiliarity with windows or if the problem is with windows itself. Please help me keep these accounts as separate as possible.