I have a 8 gig memory. I am doing online trading, and lately, a month ago, I experienced my computer just keep circling around and cannot go through everytime I run a some programs simultaneously. After some 10 minutes or so, a message saying my memory is low. I suspect there are some problem though like my Disk Drive not related to low memory. This happened even after I reseted my computer to Factory Settings recovering my original program settings. I am planning to have a memory upgrade to 12 gig. My computer is HP Desktop Pavillong. Would appreciate your help.

You have plenty of RAM so adding 4 more Gb won't help with this problem. I hope you didn't disable your page file - sadly, there are some suggesting with lots of RAM to disable the PF. That is bad advice as there is no documented evidence suggesting disabling it does any good.

This problem also occurs when running low on free disk space. How much do you have?

My Original/factory Settings was recently resgtored 3 days ago. I cannot fully utilized my computer capacity because of this problem. It keep circlying around, when large files are running. Here is the capacity of my computer: 50.79Geg used and 869Geg free.

Thank you

See if anything here helps: Preventing low memory problems