Ensure that the power cable is firmly connected to the computer and to the electrical outletThe computer stops respondingTurn the computer off — If you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold the power button forat least 8 to 10 seconds (until the computer turns off), and then restart your computer.A program stops respondingEnd the program —1. Press simultaneously to access the Task Manager.2. Click the Applications tab.3. Click to select the program that is no longer responding.4. Click End Task.A program crashes repeatedlyCheck the software documentation —If necessary, uninstall and then reinstall the program.A program is designed for an earlier Windows operating systemRun the Program Compatibility Wizard —Windows XP:The Program Compatibility Wizard configures a program so that it runs in an environment similar to non-XP operating system environments.1. Click Start® All Programs® Accessories® Program Compatibility Wizard® Next.2. Follow the instructions on the screen.Windows Vista:The Program Compatibility Wizard configures a program so that it runs in an environment similar to non-Windows Vista operating system environments.1. Click Start ® Control Panel® Programs® Use an older program with this version of Windows.2. In the welcome screen, click Next.3. Follow the instructions on the screen.A solid blue screen appearsTurn the computer off —If you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold the power button for at least 8 to 10 seconds(until the computer turns off), and then restart your computer.Other software problemsCheck the software documentation or contact the software manufacturer for troubleshooting information —NOTICE: You may lose data if you are unable to perform an operating system shutdown.NOTE: Most software includes installation instructions in its documentation or on a floppy disk, CD, or DVD.