Cursor jumps whenever I type -- What's the problem?

[michelwl]

I'm not sure what's wrong with my computer. I have run antispyware software and the results conclude that there are no threats.
However, my cursor moves when I type, jumping all over the place and even deleting words/lines (it's not because of the insert key), and my computer has been running rather slowly. Also, sometimes I get the result "web page is unavailable" when I visit various sites.

Actually, the fact that my computer runs slowly may be due to the fact that I have too many protective programs. The following are installed:

Avast Antivirus
CCleaner
AdAware
AVG Free
Advanced System Care
SuperAntiSpyware
MalwareByte's Anti-Malware

I'm not sure which ones are unnecessary. Can you suggest which ones to uninstall?

 

[Tmagic650]

Remove:
AdAware
AVG free
Superantispyware

Is this a laptop or a desktop computer?

 

[michelwl]

it's a laptop.

 

[Tmagic650]

The mouse pad may be worn out or its connector is loose at the motherboard

 

[michelwl]

i don't believe this is the problem. i just tested microsoft word and the cursor acts fine. i think it's only when i use my browsers.

 

[Tmagic650]

Try connecting an external USB wireless mouse or a PS2 mouse and see how the cursor reacts

 

[michelwl]

the cursor is still jumpy