timmmay: Thanks Bill. Is 2GB enough, or should I look at upgrading to 4GB for my Mum? If I should go 4GB I can't work out if there are free slots, might have to throw the 2GB away and replace.
2GB is plenty for her. Unless she would be using something like photoshop for photos or heavy HD video editing , 2GB would do fine.
We run PLC software at some of our sites with SQL express database on 2GB RAM running Windows 7 and never had any feeze or slow down issues.