I cant use regedit.exe and msconfig, because I got info that I'm not an admin of computer and I have because of that some limits, but I'm an admin!!! In every of this programs I have same message, I tried to start Safe Mode, but I cant even when I start computer and pressing F8 (or maybe F5) button. Also I tried to use safe mode by start -> Run -> msconfig , but it doesn't work too! Maybe it could be some virus, or something like that. Please help me!!!