Ok so I have troubleshooted a couple of computers and they have all had issues with being slow and laggy... I usually check all of the basic things.....doing the scans with anti-virus and malware bytes and doing a disk clean up and defrag but if that doesnt work I usually am stuck with backing up all of the important files and reinstalling the OS.....I feel like I should be quicker with resolving the issue...I feel like if I want to do help desk I'll need to troubleshoot quicker...any tips on how to troubleshoot quickly? Does it get better after more experience?