Troubleshooting Flashcards
(43 cards)
What is the first step in the CompTIA troubleshooting methodology?
Identify the problem
What is the second step in the CompTIA troubleshooting methodology?
Establish a theory of probable cause
What is the third step in the CompTIA troubleshooting methodology?
Test the theory to determine cause
What is the fourth step in the CompTIA troubleshooting methodology?
Establish a plan of action
What is the fifth step in the CompTIA troubleshooting methodology?
Implement the solution
What is the sixth step in the CompTIA troubleshooting methodology?
Verify functionality and preventive measures
What is the seventh step in the CompTIA troubleshooting methodology?
Document findings and outcomes
What causes a ‘No bootable device’ error?
Boot order incorrect or drive failure
What causes an ‘Invalid boot disk’ error?
External media present or corrupted MBR
What causes a ‘No operating system found’ error?
Missing or corrupted boot loader
What causes a black screen after BIOS?
Graphics driver or hardware failure
What causes a blue screen during boot?
Driver conflict or hardware failure
What causes slow boot time?
Too many startup programs or failing drive
How can you fix a boot order issue?
Enter BIOS/UEFI and set correct boot device
How can you repair the Windows boot loader?
bootrec /fixmbr, /fixboot, /rebuildbcd
What command is used to fix corrupted system files?
sfc /scannow from recovery environment
How can you resolve driver issues during boot?
Boot to Safe Mode and update/rollback drivers
What are signs of insufficient RAM in performance issues?
Slow system performance, high memory usage
What can cause high CPU usage?
Malware, runaway processes, insufficient cooling
What causes system freezing?
Overheating, bad RAM, driver conflicts
How can you resolve slow performance?
Add RAM, malware scan, disk cleanup, defrag
What can address memory issues?
Close programs, add RAM, check for memory leaks
What can improve file access?
Run chkdsk, defragmentation, replace failing drive
What causes an application not to start?
Missing dependencies, corrupted files, insufficient permissions