Cannot open any more applications
 

Hello I have a pc which has 4GB Ram installed. I have Outlook, Excel, Word,
IE8, and a couple of other applications e.g. say 6 applications in total,
when I want to open a 7th application my computer is so slow and all the
other applications are affected. The only way I can get to use e.g. the 7th
application is by closing another application down. My virtual memory is set
at 2046 Initial size 4092 maximum. Any ideas please as the PC is only 6
months old