Hello. I am looking for software that will allow me to manage (review/approve) any new installations on my desktop computer. Sometimes my brother or other people use my computer during family events and I discovered there were some items installed that were not stopped by my anti-virus/firewall (maybe because they weren't trojans, etc.). But, whether it is a simple app like a PDF reader, a game, or something else, I really want to have it so any new installations require a login/password or something to that effect so I can control what is actually installed on my computer in my brief absence. Thanks!