Lagging issue

[ErrorEZ]

So i got a computer by my father some days ago, its like 2 years old. An Acer Aspire 5535. (windows vista)

And the hardrive is almost filled with alot of things that i dont use and dont need.

But when i play EQ2 its always laggy, i'm down to 3-5-7 FPS all the time.

And i'm getting pretty tired of it,

So here is the question:

Should i clean the computer and upgrade it to Windows 7?

Would it make it stop lagging?

(Sorry for bad english)

[TSR-JoshuaM]

While ensuring that your hard drive has enough free space is important, it may not be your issue.  Are you familiar with the specifications of that laptop?  I've included a link to the Knowledge Base that will help you generate  diagnostic files for us that can help me identify an issuse.

[EQII] Video walkthrough: Generating dxdiag, msinfo32 and netinfo files

I am most interested in having you post the DXDIAG and MSINFO32 information here.