Any abnormality in the integrated components of a computer can prove harmful to its performance but some general computer issues can be addressed without seeking professional IT help. Among the most common problems you may encounter are issues with the computer freezing and appearances of the infamous "no boot" or "blue screen of death." To repair a computer you'll need to troubleshoot the issue and determine if the fix is something you can perform yourself; for more complicated problems however consider seeking the help of a professional.