Subtronics LLC
Speed Up a Slow Computer
The big traffic guide: cleanup, SSDs, RAM, startup bloat, and heat.
Read GuideComputer Troubleshooting Guides
Start here if your computer is slow, won’t turn on, won’t boot, keeps overheating, or is doing something that just doesn’t feel right.
Common computer problems
Why Is My Computer So Slow?
Slow startup, too many background apps, failing drives, heat, malware, and too little memory are common reasons a PC feels sluggish.
Computer Won’t Turn On
A computer that shows no signs of life may have a power issue, loose connection, failed power supply, dead battery, or a deeper motherboard problem.
Windows Won’t Boot
Boot loops, automatic repair failures, and endless spinning dots often point to corrupt system files, failing storage, or update-related issues.
Why Is My Computer Overheating?
Dust buildup, failed fans, poor airflow, dried thermal paste, and aggressive loads can all push temperatures too high.
Blue Screen Errors in Windows
Blue screens can come from bad drivers, unstable memory, failing storage, overheating, or power issues.
PC Keeps Randomly Restarting
Random restarts often point to power delivery issues, overheating, unstable RAM, driver problems, or Windows corruption.
Internet Keeps Disconnecting on My PC
Wi-Fi drops can come from router placement, adapter problems, Windows issues, sleep settings, interference, or ISP-side trouble.
Hard Drive Failure Warning Signs
Clicking sounds, very slow loading, disappearing files, and frequent read errors can signal a failing drive.
Laptop Running Hot
Laptops heat up faster than desktops because of compact cooling and dust buildup, but extreme heat is still a warning sign.
Why Does My Computer Keep Freezing?
Freezing can come from bad storage, memory issues, overheating, driver conflicts, or severe software corruption.
Why Is My Computer Slow to Start Up?
Startup delays are often caused by traditional hard drives, too many startup programs, Windows update backlog, or drive health issues.
Why Is My PC Making Weird Noises?
Grinding, rattling, whining, and clicking noises usually come from fans, hard drives, or coil whine under load.
Screen Is Black but the Computer Is On
If lights and fans come on but the display stays black, the issue could be the monitor, cable, graphics path, RAM seating, or deeper hardware trouble.
Signs Your Computer Might Have a Virus
Unexpected pop-ups, redirects, fake security warnings, unusual slowness, and strange account activity can all point to malware.
Why Is My Gaming PC Lagging?
Gaming lag and stutter can come from overheating, bad settings, background apps, old drivers, insufficient RAM, or hardware mismatches.
Our approach
We want willing people to feel more comfortable trying safe, sensible troubleshooting steps on their own. When a job crosses into data risk, electrical concerns, or advanced hardware work, we are here to help.
See our Right to Repair page for resource links and the bigger vision behind this section.
Featured DIY tutorials
Featured DIY guides
Fresh Windows Install
A better DIY option when your system is cluttered, unstable, or due for a truly clean reset.
Read Guide