Use compressed air to clean out dust from the fans.
Unplug USB drives, printers, external hard drives, and cameras. A faulty USB device can prevent booting. computer trouble shooting
Make sure air vents are not blocked by dust or blankets. Use compressed air to clean out dust from the fans
If you recently added new RAM or a new graphics card, remove it to see if that solves the issue. external hard drives
Always use a laptop on a hard surface, not a bed or couch.
Pay attention to a sequence of beeps or flashing lights on the motherboard; these are error codes telling you what's wrong. Phase 2: Computer is On, But Slow/Broken (Windows) If the computer turns on but runs slow or freezes: