We should know all of the below troubleshooting paths to repair or maintain a computer, laptop and a printer before taking a+ essentials actual exam. Keep watching this blog for further explanation of all troubleshooting tips and tricks. You can ask any number of questions regarding computer hardware troubleshooting in comments section of this post. So keep posting doubts as comments.
Identify the problem and question the user and identify user changes to computer and perform backups before making changes, establish a theory of probable cause (question the obvious), test the theory to determine cause, once theory is confirmed determine next steps to resolve problem.
If theory is not confirmed re-establish new theory or escalate establish a plan of action to resolve the problem and implement the solution.
Verify full system functionality and if applicable implement preventative measures, document findings, actions and outcomes.
We should be able to explain and interpret common hardware and operating system symptoms and their causes like operating system related symptoms, blue screen, System lock-up, Input/output device, application install, start or load, windows specific printing problems, print spool stalled, Incorrect / incompatible driver, hardware related symptoms, excessive heat, noise, odors, status light indicators, alerts, visible damage (e.g. cable, plastic), use documentation and resources, user / installation manuals, internet / web based, training materials.
We should be able to determine the troubleshooting methods and tools for printers like manage print jobs, print spooler, printer properties and settings, print a test page.
We should be able to explain and interpret common laptop issues and determine the appropriate basic troubleshooting method like Issues, power conditions, video, key board, pointer, stylus, wireless card issues, methods, verify power (e.g. LEDs, swap AC adapter), remove unneeded peripherals, plug in external monitor, toggle Fn keys or hardware switches, check LCD cutoff switch, verify backlight functionality and pixilation, check switch for built-in WIFI antennas or external antennas.
We should be able to integrate common preventative maintenance techniques like physical inspection, updates, driver, firmware, os, security, scheduling preventative maintenance, defrag, scandisk, check disk, startup programs, use of appropriate repair tools and cleaning materials, Compressed air, lint free cloth, computer vacuum and compressors, power devices, appropriate source such as power strip, surge protector or UPS, ensuring proper environment, backup procedures