I have gone through the articles here, here and over other sites.However, unable to glean any actionable details for my issue.
I installed additional RAM in my old laptop for performance improvement - still dead slow(approx 5 mins to boot, another 5mins to open chrome). I believe the low amount of usable RAM is the reason here.[Installed RAM:6GB / Usable RAM:2.8GB]
TaskManager shows the RAM usage to be 100% almost all the time.
I am attaching few screenshots.

As per my understanding, P6100 can go up to 8GB of RAM. Before I add another 2GB of RAM, I would like to know whether it will really make any difference.Or is it the P6100 which is the cause of slowness here. Please advice.