Laptop Details:
Got the computer: Exactly 3 years ago
Model: Acer 532 Aspire
Running: Windows 7
Mozilla Version: 13.0
My I.T. Knowledge - ** NONE! **
>>> Backup: None (I know this is a HUGE no-no. But I couldn't afford the fees for online backup any longer, and don't know how else to do it as I can't afford the disks or the USB sticks)

I don't know if this is the right place to post. I recently have started having lag issues when typing, and also constant popup windows coming up, regardless of the popup blocker I have. They are annoying as they are the ones that you can't just shut down without having to click out of 4-6 windows. Also - when I open a new tab, even though the homepage is set to Google, it shows me a Messenger Plus search window. When I try typing in the top search bar on the actual task bar, after 2 characters - the curser automatically pops into the address bar.

Whenever I go to another page, I see a flickering bar scanning, at the bottom left of the page, what I'm doing, and it often drops me onto a Bigseekpro search window, or searchbee, so I have to go back and start again. I also often get the whole browser freezing and saying "Not responding" for a few seconds.

I also have Secunia PSI frequently gives me a message saying there are bad programmes....I don't even know where Secunia comes from!

I have uninstalled and re-installed Firefox but it's still happening, which makes me wonder if there is a lurgie in my system even though Malaware shows nothing in the scans I have done.

Can anyone help? Thanks in advance. Scans asked for in the stickie are below.