Pavilion dv5
Catalyst host appilication error & about slow processing

1st problem is that, when we start the laptop, then there is a small window size same as that of copying window is occured.

The window is showing that some program not working properly and window closing the program and again second time the same window is occured.

2nd problem is that my laptop's ram is 3GB but it's processing is really slow & it's processing is like that of 1GB ram, my every friend do not believe that my laptop ram is 3GB becauuse of it's slow processing.

So please give me the solution of these two problems.

THANK YOU