I'm on a Compaq machine, Intel Core 2 Duo processor, 2GB RAM, Windows 7, Ubuntu 11.10 installed inside Windows 7. I'm using BitDefender anti virus (free version).
My machine is getting slow very rapidly. I don't know the reason. I didn't install any new software lately. I'm just using the machine for word processing and coding, mainly using Office, Netbeans IDE, and other development software.
Even shutting down is slow. The booting time is higher than usual. When I run three applications simultaneously – say MS Word, Firefox and NetBeans – if I switch to NetBeans from Firefox, I can't do anything for about 45 seconds. This time increases every day.