TLE

• Preventive Maintenance


  Regular and systematic inspection, detection, and correction of possible problems to prevent future system failures on a working device
• Passive Maintenance


  Precautionary activities to protect the computer from the environment
• Passive Maintenance


  • Using power-protection devices such as Uninterrupted Power Supply (UPS) and Automatic Voltage Regulator (AVR)
  • Clean and temperature-controlled environment
  • Preventing excessive vibration
• Active Preventive Maintenance


  Activities that promote a longer trouble-free life for the device
• Active Preventive Maintenance


  • Periodic cleaning of the device and components
  • Performing regular file back-up
  • Scanning of malwares (virus, spyware, and worms)
  • Disk cleanup and file defragmentation of hard drives
• A system unit must be cleaned ANNUALLY in a normal working environment
• Cleaning Tools

  Variety of necessary and vital tools and products created and designed in various materials to meet a cleaning need and used to clean easily, effectively, and efficiently
• Cleaning the device essential to extend its Life
• Heat, dust, and humidity can deteriorate computer components
• Lint Free Cloth


  Used to clean different computer components without scratching or leaving debris
• Cable Ties


  Used to bundle cables neatly inside and outside of a computer
• Cleaning Solution


  Mixture of water and alcohol to disinfect and clean the surface of the device
• Air Blower


  Machine used for generating flow of air at substantial pressure to blow away dust and debris
• Dirty Surfaces is a common cause of mouse sensor lens problems
• Brush


  Tool essential for cleaning the back part of a computer chassis or case
• Cable Management improves airflows and aesthetics
• Dust and debris can accumulate inside the unit over time due to fans sucking in air
• Wire Stripper is NOT needed to clean the internal parts of the system unit
• Part Organizer


  Used to hold screws, jumpers, fasteners, and other small parts and prevents them from getting mixed together
• Ways to Clean the Keyboard


  1. Do not spray any liquid directly onto the keyboard or casing, it may zip into the crevices and damage the board. Use a damp microfiber or lint-free cloth and wipe the surface and cord gently.

  2. If you are using a mechanical keyboard, just remove the keycaps and wash it with clean water. And bush the debris left behind on the casing or use an air blower.
• Ways for Cleaning the LCD/LED/AMOLED Monitor Screen


  1. Unplugging your monitor from the socket to avoid the risk of electric shock.

  2. Use microfiber or lint-free cloth when cleaning or wiping the screen, other cloth could cause scratches and damage on to the screen.

  3. Do not spray any liquid directly on the screen. Use a damp microfiber or lint-free cloth and wipe the surface gently.
• UPS


  Battery backup, provides backup power when your regular power source fails, or voltage drops to an unacceptable level
• 23 Degree Celsius is the ideal operating temperature for a device or computer environment
• ESD tools during maintenance inside a system unit protects against static electricity
• Avoid using excessive force when cleaning the internal parts of the system unit
• Unplug the system unit from the power source first before working on the computer chassis
• CMOS battery in a computer store BIOS settings and system clock data
• Analyze the disk to check for fragmentation to manually defragment HDD
• Utilize DISK CLEANUP to decluttered temporary files, old program updates, and internet downloads
• Defragment the drive to optimize HDD's performance
• SSD


  Solid-state storage device that uses integrated circuit assemblies to store data persistently, typically using flash memory
• To Prevent Device Overheating

  1. Providing good airflow

  2. Using power surge protectors

  3. Regular file backups

  4. Indirect sunlight location/place
• Malware


  Malicious Software
• Error Checking


  Type of software designed to prevent, search for, detect, and remove software viruses and other malicious software
• Defragment and Optimize Drives


  Windows utility software that rearranges fragmented data to maximize the storage space in the disk
• Disk Cleanup


  Utility software that deletes unnecessary files from a storage to free up space on the drive
• You are advised to defrag the hard disk drive at 10%
• Windows Update is important to provide feature enhancements and security updates
• Users can access Windows Update in Windows 7, 8, and 8.1 at the CONTROL PANEL
• Disk Defrragmenter


  Used to rearrange fragmented data