Hello, My name is Valeri Ivanov. I have a problem with my Windows Vista Home Basic. I have had that problem since i have bought this computer and i would like to solve it. The problem causes DEP (Data Execution Prevention). I canÃ‚Â´t turn it off. I post a picture, so you could see where is the issue. ImageShack - Hosting :: 36756816cr1.jpg As you can see, i have taken a screen print. You find three red boxes that i have marked. I opened System menu. After that i pressed Advanced system settings button. After that computer asks administrator permission. I am an administrator so i allowed to continue.Opens new window. I press under Performance Settings button.Opens new window. Here is the problem. I canÃ‚Â´t press these two buttons that are located up (Turn on DEP... and Turn off DEP...) But down this window you can see a 3. red box. And it says that i must be an administrator to use these settings. But in the 1st window i allready gave an administrator permission.I want to know how can i turn off DEP. DEP closes most of the programs that i want to use. Even when i want to install a new program, it closes it. I donÃ‚Â´t like that and i want to turn it off. Sorry for my bad English. This is not my mother-tongue. I hope you understood what i said so please help me. When you answer, please use simple words so could understand everything. PS. I have allready tried to turn DEP that way also: Vista: Disable DEP or NoExecute Protection to fix Explorer Crashing | Microsoft Vista | Tech-Recipes But it didnÃ‚Â´t help. And i have installed Service Pack 1. It didnÃ‚Â´t help also.