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Computer Maintenance Course
More than 2 million students worldwide

Computer Maintenance Course

4.6

Learn everything you need to diagnose, repair, and maintain desktop and laptop computers from the ground up. This course covers hardware fundamentals, component replacement, OS installation, and professional troubleshooting techniques. Whether you want to launch a repair business or sharpen your technical skills, this is the training that gets you there.

Dedika for businesses

What you will learn:

You will gain hands-on knowledge of PC hardware, from identifying every internal component to replacing CPUs, RAM, GPUs, and storage drives. You will learn how to configure BIOS and UEFI settings, install operating systems cleanly, and troubleshoot real-world failures using a structured diagnostic process. The course also covers data recovery basics, malware removal, printer servicing, and networking fundamentals for technicians. You will practice preventive maintenance routines and learn how to document your work professionally. Business topics such as pricing, service policies, and customer communication prepare you to operate a repair service with confidence.

How you study in practice Computer Maintenance Course

How you practice Computer Maintenance Course

For companies looking to train their teams

With Dedika for businesses, the course includes exercises and examples tailored to your own business and the way your company needs.

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Course Content

8 Chapters • 40 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Safety, Tools, and Work Environment

  • Lesson 1 • Diagnostic and Measurement Tools

    Covers multimeters, POST cards, and cable testers used to diagnose hardware faults. Students interpret readings to confirm or rule out component failure.

  • Lesson 2 • Electrostatic Discharge Prevention

    Explains how ESD damages components and how to prevent it. Students apply grounding techniques consistently before handling any sensitive hardware.

  • Lesson 3 • Essential Hand Tools

    Introduces screwdrivers, spudgers, pliers, and other hand tools used in PC repair. Students select the correct tool for each fastener type and component.

  • Lesson 4 • Electrical and Physical Safety

    Addresses shock hazards, heavy-component handling, and chemical safety in a repair environment. Students follow safety protocols that protect both themselves and the equipment.

  • Lesson 5 • Workspace Setup and Organization

    Guides students in arranging a clean, well-lit, and organized repair bench. A structured workspace reduces errors and speeds up every repair task.

Chapter 2See details

Foundations of Computer Hardware

  • Lesson 1 • Storage Devices and Interfaces

    Examines HDDs, SSDs, and optical drives along with their connection interfaces. Students distinguish storage technologies by speed, capacity, and use case.

  • Lesson 2 • Display and Input Peripherals

    Surveys monitors, keyboards, mice, and other input devices and their connection standards. Connects peripheral selection to user productivity and ergonomics.

  • Lesson 3 • Inside the Desktop PC

    Introduces the physical layout of a desktop computer and its internal components. Establishes the spatial and functional vocabulary used throughout the course.

  • Lesson 4 • Laptop Hardware Differences

    Highlights how laptop components differ from desktop equivalents in size, power, and repairability. Prepares students for the unique challenges of portable system maintenance.

  • Lesson 5 • Core Processing Components

    Covers the CPU, RAM, and chipset as the computational core of any PC. Students connect component specs to real-world performance outcomes.

Chapter 3See details

Disassembly and Reassembly Techniques

  • Lesson 1 • Pre-Disassembly Planning

    Covers documentation, backup verification, and part identification before opening any system. Proper planning prevents data loss and component mix-ups during repair.

  • Lesson 2 • Desktop Disassembly Sequence

    Walks through the step-by-step removal of desktop components in the correct order. Students practice safe cable disconnection and component extraction techniques.

  • Lesson 3 • Component Handling During Service

    Teaches correct handling of motherboards, CPUs, and RAM during the repair process. Students avoid bent pins, cracked solder joints, and contamination of sensitive surfaces.

  • Lesson 4 • Laptop Disassembly Sequence

    Guides students through laptop-specific disassembly, including hidden screws and fragile ribbon cables. Emphasizes patience and precision to avoid cracking plastic housings.

  • Lesson 5 • Reassembly and Verification

    Covers the reverse sequence for reassembly and the checks performed before powering on. Students confirm all connections are secure and no parts are missing before testing.

Chapter 4See details

Component Replacement and Upgrades

  • Lesson 1 • Power Supply Replacement

    Teaches PSU wattage calculation, connector identification, and safe swap procedures. Students replace a PSU and verify all rails deliver correct voltages.

  • Lesson 2 • CPU and Cooler Replacement

    Addresses CPU compatibility, socket installation, and thermal compound application. Students replace a CPU and cooler and confirm stable temperatures under load.

  • Lesson 3 • RAM Upgrade Procedures

    Covers compatibility research, physical installation, and BIOS verification of new RAM modules. Students upgrade RAM in both desktops and laptops and confirm correct detection.

  • Lesson 4 • GPU and Expansion Card Upgrades

    Covers GPU selection, driver preparation, and PCIe slot installation. Students install a graphics card and resolve common driver and power connector issues.

  • Lesson 5 • Storage Device Replacement

    Guides students through replacing failed drives and migrating data to new storage. Covers cloning, fresh installation, and drive initialization procedures.

Chapter 5See details

BIOS, Firmware, and Boot Configuration

  • Lesson 1 • BIOS and UEFI Fundamentals

    Explains the role of BIOS and UEFI in the boot process and hardware initialization. Students distinguish legacy BIOS from UEFI and identify key firmware settings.

  • Lesson 2 • Firmware Update Procedures

    Teaches how to safely download, verify, and flash firmware updates. Students follow manufacturer procedures to minimize the risk of a failed flash.

  • Lesson 3 • Essential BIOS Settings

    Covers date/time, boot order, hardware enable/disable, and security settings in firmware. Students configure a system for optimal boot behavior and hardware compatibility.

  • Lesson 4 • Diagnosing Boot Failures

    Addresses no-POST, missing OS, and bootloader errors using firmware and external tools. Students isolate the failure layer and apply the correct fix for each scenario.

  • Lesson 5 • Boot Modes and Partition Schemes

    Explains MBR vs. GPT partition schemes and their relationship to BIOS and UEFI boot modes. Students configure the correct boot mode for a given OS and drive combination.

Chapter 6See details

Operating System Installation and Configuration

  • Lesson 1 • Dual-Boot and Multi-OS Setups

    Explains how to install multiple operating systems on one machine without conflicts. Students configure a bootloader to present OS choices at startup.

  • Lesson 2 • Preparing Installation Media

    Covers downloading OS images, verifying checksums, and writing bootable USB drives. Students create reliable installation media before beginning any OS deployment.

  • Lesson 3 • Post-Install System Configuration

    Covers power plans, update settings, user accounts, and security baselines after installation. Students apply a consistent configuration checklist to every newly installed system.

  • Lesson 4 • Driver Installation and Management

    Teaches the correct order for installing chipset, GPU, audio, and network drivers. Students use device manager to confirm all hardware is recognized and functioning.

  • Lesson 5 • Clean OS Installation Walkthrough

    Guides students through partitioning, formatting, and completing a clean OS installation. Each step is tied to a decision point that affects system stability and performance.

Chapter 7See details

Hardware Diagnostics and Troubleshooting

  • Lesson 1 • Display and GPU Troubleshooting

    Addresses no-display, artifacting, and driver crash scenarios for both integrated and discrete graphics. Students isolate GPU faults from display cable and monitor faults.

  • Lesson 2 • Overheating and Thermal Failures

    Covers temperature monitoring, thermal throttling detection, and cooler maintenance procedures. Students restore normal operating temperatures through cleaning and re-pasting.

  • Lesson 3 • Memory and Storage Fault Diagnosis

    Teaches RAM testing with diagnostic utilities and drive health assessment with SMART data. Students distinguish memory errors from storage errors based on symptom patterns.

  • Lesson 4 • Power and Startup Failures

    Covers dead systems, random shutdowns, and power-related instability using a component-isolation approach. Students trace power faults from the outlet to individual components.

  • Lesson 5 • Structured Troubleshooting Methodology

    Introduces a repeatable six-step diagnostic process applicable to any hardware problem. Students practice identifying symptoms, forming hypotheses, and testing solutions systematically.

Chapter 8See details

Preventive Maintenance and Service Documentation

  • Lesson 1 • Scheduled Cleaning Procedures

    Details interior and exterior cleaning tasks and their recommended intervals. Regular cleaning prevents thermal buildup and contact corrosion that cause premature failures.

  • Lesson 2 • Maintenance Scheduling and Contracts

    Covers how to design recurring maintenance plans for individual clients and business fleets. Students draft a maintenance agreement that defines scope, intervals, and deliverables.

  • Lesson 3 • Service Record Documentation

    Introduces standardized formats for recording repairs, parts used, and test results. Accurate records support warranty claims, repeat-visit efficiency, and quality assurance.

  • Lesson 4 • Backup and Recovery Planning

    Teaches the 3-2-1 backup strategy and how to verify backup integrity before a failure occurs. Students configure automated backups and practice a full restore procedure.

  • Lesson 5 • Software Maintenance Tasks

    Covers OS updates, driver refreshes, disk health checks, and malware scans as recurring tasks. Students build a software maintenance checklist tied to a regular service schedule.

Certification

Your valid completion certificate

This course is for you:

  • Hobbyist builders: eager to understand every component inside their PC.

  • Career changers: ready to enter the tech repair field from scratch.

  • Small business owners: wanting to cut IT costs by handling repairs in-house.

  • Recent graduates: looking to add a marketable technical certification to their resume.

  • Freelance technicians: seeking to formalize and expand their existing repair skills.

  • IT support staff: aiming to deepen their hardware knowledge beyond software troubleshooting.

What our students say

Your classes are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to switch platforms... I thank you for everything you do, I've already recommended you to other people...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can switch chapters and skip content I don't need.
Mariana Ferres
Mariana FerresPhotography Student
I like the content and the presentation style and video transcription, which speeds up the process!
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Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.
André Felipe
André FelipePrompt Engineering Student

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