Diagnose and fix a computer that won't turn on with our step-by-step troubleshooting guide. Learn power supply tests, RAM diagnostics, cost analysis, and when to repair vs replace. Essential safety tips and hardware checks included.

Discover why your monitor screen has a blue tint and learn step-by-step solutions. Covers cable issues, color settings, driver problems, hardware diagnostics, and when to replace. Proven fixes from display repair experience.