Solving Problems
If the computer stops responding or a solid blue screen appears —
CAUTION: You might lose data if you are unable to perform an operating system shutdown.
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. Then restart your computer.
If a program is designed for an earlier Microsoft® Windows® operating system —
Run the Program Compatibility Wizard. The Program Compatibility Wizard configures a program so that it runs in an environment similar to
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. If you have other software problems —
•Back up your files immediately.
•Use a
•Save and close any open files or programs and shut down your computer through the Start 
menu.
•Check the software documentation or contact the software manufacturer for troubleshooting information:
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