if your computer is running as slow as mine was yesterday, and it keeps opening your internet browser taking you to their advertising site, and all you want to do is fix the problem, well doing this may help you..
first off.. open all the programs you think you are going to be using, then open task manager (ctrl alt delete) go to the tab "processes' find a program called 'explorer.exe' right click on it and END PROCESS, this will stop the lag, and stop the random websites from opening for now, now you can do what ever you need to fix your problems. NOTE: doing this will remove your start menu, but don't worry, you can easily get it back after you fix your problems by either 1: restarting your computer or 2: open task manager>file>New task(run)> then type explorer.exe