Open Task Manager (Ctrl + Shift + Esc), go to the "Startup" tab, and disable apps you don't need immediately.
Unplug USB drives, printers, external hard drives, and cameras. A faulty USB device can prevent booting.
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: computer trouble shooting
If your fan is running loud or the computer shuts down randomly:
Make sure air vents are not blocked by dust or blankets. Open Task Manager (Ctrl + Shift + Esc),
If your computer has no lights, no fans, or a black screen (power-on self-test failure): Start with a hard reset.
If you ask for help in a forum, always give your PC specs (CPU, RAM, GPU) and describe the exact symptoms! If you are still having trouble, let me know: Pay attention to a sequence of beeps or
Make sure you have at least 10-20 GB free on your C: drive. Delete large files or empty the Recycle Bin.