Locking Down a Windows 7 Computer

This is not actually solved I just suck at life, and clicked best answer by accident. My computer has been locking up recently. It seems fine until I start to put strain onto the system. This is usually done by me playing games. At first I thought it was heat and noticed my processor getting up...

If i leave my computer, for even a short time,when i come to use it i get a message "locking your computer".I have removed the password protection but i want to stop this happening as i am the only user and it's a pain having to wait for my screen to reappear. System is Windows 7 Home Premium 64...

I'm currently trying to lock down my base computer from my friends and was wondering what are the best ways ways on doing it?? When I mean locking it down I mean as far as accessing the data on the computer. I have quite a bit of computer knowledge but I'm like everyone else, I don't know it all....

So almost eevry time I come back to my computer after a longer period of being away it will completely freeze on me. I have not added any hardware or installed software since this began and have been using this computer for a year and a half. Example would be Im able to use now, and it will run...