🎓 Grade 11–12 CSS • S.Y. 2026–2027 • Paliparan 3 SHS

Fix it.
Understand it.

TechFix is a web-based troubleshooting assistant for common hardware, software, networking, and peripheral problems — built for Computer Systems Servicing students, teachers, and beginners.

No install • Installable • Works offline after first visit • Free for school use
Coverage
22 troubleshooting guides
Step-by-step • Causes • Safety reminders • Printable
4Categories
✓Beginner-friendly

How it works

Identify → check causes → follow steps → verify. Ask a technician for anything advanced.

🔎

Identify

Search or browse the problem that matches what you see — no display, black screen, slow PC, Wi-Fi, printer, etc.

🧩

Check causes

Review the most common possible causes before changing anything. Avoid unnecessary fixes.

🛠️

Follow steps

Do the basic steps in order, tick them off, and check if the issue is resolved after each step.

Browse by category

Explore common computer problems grouped by type.

Suggested guides

Quick access to common troubleshooting topics.

Can't find your problem?
Describe the issue to the TechFix Assistant for a suggested guide or try a related tutorial.

Computer Troubleshooting

Choose a category, search, or ask the assistant. Try "black screen" — it also finds "No Display".

0 guides • 0 recently viewed

Illustrative — refer to your actual device for ports and indicators
⏱ Time
🧰 You may need

Possible causes

    Step-by-step troubleshooting — tick as you go

    ⚠️ Safety: Unplug or ask your teacher before opening any computer case. Stop and ask a qualified technician for board-level, power supply, or advanced networking repair. This guide covers basic procedures only.
    ✅ If the problem is fixed, you can stop. If not, try the next step or ask for help. Use “Did this guide help?” to record feedback on this device.
    Did this guide help?
    Your response is saved on this device only.

    Quick info

    Related guides

    Glossary

    POST — Power-On Self Test.
    BSOD — Blue Screen of Death (Windows stop error).
    DHCP — Auto-assigns IP addresses.
    Driver — Software that lets hardware talk to the OS.

    TechFix Assistant

    Describe your problem in plain language. TechFix suggests a matching guide and basic next steps. If the built-in assistant service is unavailable, it uses the local guide matcher.

    How the assistant works Checking assistant…

    The assistant can suggest a matching TechFix guide and basic troubleshooting steps. It is not a professional diagnosis. Never enter passwords, personal information, or API keys. For advanced or risky repairs, ask your CSS teacher or a qualified technician.

    Try asking:
    ⬛ “black screen, no display”
    🖥️ “My computer has no display”
    📶 “WiFi not connecting”
    🐢 “Computer is very slow”
    🖨️ “Printer not printing”
    💙 “Blue screen error”
    ⌨️ “Keyboard not working”
    How it works
    The assistant tries the built-in service when available and falls back to matching your message against TechFix guides. If it finds a close match, it suggests the guide and quick steps. Black screen / blank screen maps to “No Display”. It may not understand every description.
    Hi! I'm your TechFix Assistant. 👋
    Tell me what's happening — e.g., black screen, no display, or Wi-Fi not connecting. I'll break down what's likely wrong, walk you through the fix step by step, and suggest YouTube lessons so you learn how it works.

    Favorites

    Guides you saved for quick access. Stored on this device only.

    About TechFix

    Research prototype — Grade 12 Computer Systems Servicing, Paliparan 3 Senior High School.

    What is TechFix?

    TechFix is a web-based troubleshooting assistant that guides users through common and basic computer problems in hardware, software, networking, and peripherals. It provides possible causes, step-by-step procedures, safety reminders, and printable guides. It is designed to support CSS students during hands-on activities and basic servicing.

    Scope & Limitations

    TechFix covers basic troubleshooting only. Board-level repair, power-supply repair, advanced networking (enterprise), and complex OS re-engineering are outside the scope. Users are advised to seek a qualified technician or teacher for advanced cases — a reminder appears on every guide.

    TechFix is an assistant, not a replacement for a qualified technician.

    Using TechFix

    Search for a problem, open the matching guide, review possible causes, and follow the basic steps one at a time. If a guide does not match your issue, try another keyword or use the Chat Assistant.

    Researchers

    Grade 12 CSS Researchers • S.Y. 2026–2027
    Paliparan 3 Senior High School
    City of Dasmariñas, Cavite

    How to cite / acknowledge

    TechFix is a research prototype for classroom use. Check important troubleshooting steps with your CSS teacher, and do not attempt repairs outside your training.

    TechFix Assistant
    Hi! Try “black screen” or “no display” — I’ll find the guide. I can suggest a matching guide and basic steps.