TLE

• Computer Troubleshooting


  • Turning off PC properly
  • Updating anti-virus/spyware
  • Preventive maintenance
  • Corrective maintenance
  • Warning issues
  • Malware issues
  • Planned Maintenance (PM)
  • Condition Based Maintenance (CBM)
  • Creating back-up of files
  • Deleting temporary files
  • RAM
  • Resetting CPU/Memory/HDD
  • Uninstalling apps
  • Deleting files
  • Checking monitor
  • Checking video card
  • Checking VGA
  • Replacing RAM
  • Replacing video card
  • Replacing HDD
  • Replacing CMOS battery
• Turning off PC properly


  Maintenance plan for hardware
• Updating anti-virus/spyware


  Maintenance plan for software
• Preventive maintenance


  To extend the life of equipment
• Corrective maintenance


  To restore failed equipment
• Warning issues


  Difficulty of opening a program
• Malware issues


  Installing untrusted programs
• Planned Maintenance (PM)


  Scheduled maintenance
• Condition Based Maintenance (CBM)


  Needed maintenance
• Creating back-up of files

  Protect the files
• Deleting temporary files


  Create more disk space for your files
• RAM is responsible for blue screen of death
• When your computer won't turn on

  1. Reset CPU/Memory/HDD

  2. Plug to different outlet
• If your computer is slowing down

  1. Uninstall some apps

  2. Delete some files
• When there's no display on the monitor

  1. Check other functional monitor

  2. Check the video card

  3. Check the VGA
• When you hear 1 long and two short beeps


  Your RAM is at risk
• When you hear two short beeps


  Your video card is at risk
• When there's no display and you hear unnecessary sound from the HDD

  Replace the HDD
• When the time and date are always incorrect

  You must replace the CMOS Battery
• Operating Systems


  • General operating system
  • Windows operating system
  • Windows XP
  • Windows Vista
  • Windows 8
  • Windows 10
  • Windows 11
  • Linux
  • Ubuntu
  • Mint
  • Debian
  • MAC OS
  • Kodiak
  • Gala
  • Fuji
  • Lobo
  • Liberty
  • Catalina
  • Big Sur
  • Monterey
  • Rome
  • Mobile operating system
  • Android version 1.0
  • Cupcake
  • Donut
  • Éclair
  • Frozen yogurt
  • Gingerbread
  • Honeycomb
• General operating system


  Represents an array of operating systems intended to run a huge number of applications on a broad selection of hardware, enabling a user to run one or more applications or tasks simultaneously
• Windows operating system


  Known as the de facto standard for home and business computers
• Windows XP


  Released on October 25, 2001, has automatic wireless connection support
• Windows Vista


  Released on January 30, 2007, first OS to use DVD-ROM for installation
• Windows 8


  Released for retail on October 26, 2012, installed in new devices like Laptops, Mobile phones, tablets
• Windows 10


  Released on July 29, 2015, can run windows store apps within windows on the desktop rather than in the full-screen mode
• Windows 11


  Released in October 5, 2021, claims performance improvements such as smaller update sizes, faster web browsing, faster wake time from sleep mode, and faster Windows Hello authentication
• Linux


  Designed to provide PC users a free or low-cost alternative, efficient and fast-performing system
• Ubuntu


  Linux OS considered as a good distribution for beginners, intended primarily for personal computers (PCs) but can also be used on servers
• Mint


  Linux version that produce a modern, elegant, and comfortable operating system which is both powerful and easy to use
• Debian


  The first linux software which was offered free of cost to its users in 1993 by Software engineer Ian Murdock
• MAC OS


  The working system for Apple's Macintosh line of PCs and workstations
• Kodiak


  An operating system for Apple's Macintosh line released on September 13, 2000
• Gala


  An operating system for Apple's Macintosh line released on September 30, 2015
• Fuji


  An operating system for Apple's Macintosh line released on September 20, 2016
• Lobo


  An operating system for Apple's Macintosh line released on September 25, 2017
• Liberty


  An operating system for Apple's Macintosh line released on September 24, 2018
• Catalina


  An operating system for Apple's Macintosh line released on October 7, 2019
• Big Sur


  An operating system for Apple's Macintosh line released on November 12, 2020
• Monterey


  An operating system for Apple's Macintosh line released on October 25, 2021