I had the same issue before. After spending some time searching, few remedies were suggested online. Our IT department upgraded my windows as well as Tableau Desktop to 64 bit system. Then this problem went away. Later on, they also upgraded to 8 GB RAM and replaced HDD with SSD, so it runs even faster. Since you mentioned that your pc is using almost all of your RAM, then it may mean to upgrade it to 16 GB or 32 GB size. Also, if I were you, I would let IT to look at this article to help them to solve this issue: “Tableau is low on process memory” Warning | Tableau Software
Hope this helps.
Thanks for your reply. it certainly has got me thinking...
This is the route I have gone down before, when we had 4GB of RAM on most corporate machines. However all out Tableau users, have give or take, approximately the same spec of machine for Tableau use.
Just appears to be isolated to one machine in our organisation. ( Actually that gives me an idea )
I might try that user on a different machine with Tableau already installed and see if the problem follows the user. (Profile vs Hardware)
The user had no real issues until recent times using Tableau.