Why is the maximum memory usage 512?

How do i step by step find out how much memory i have used?

• PLEASE READ. Nov 5 2005 Buy Brand New computer.Nov 2005 -Jan 2007 comcast security No Problems Jan 2007 Verizon security Blue screen by June 2008 August 30 2008 windows XP uninstaled and rein staled every thing completely wiped out Geek Squad comes unistals reinstall Windows XP and Uninstall Verizon Fios security I bu Trend Micro for Aug 2008- Aug 2009 Again No problems.I cant afford another year so back to Verizon Fios Security Aug 2009 Now a year to date on August 2010 a Back door virus gets threw the new improved verizon security site Had to Pay Dell to again install and reinstall windows XP. Now when you uninstall and reinstall NOT saving anything you start back at factory setting Correct .So why would Verizon dick me around saying I need memory I haven't had the program back 8 months there is no music programs my son does not play online via computer Nothing.I have found out there security is not compatible with my browser but i need to prove i have memory .Please explain step by step how to do this Oh info i think is important.Verizon Fios I have a Dell Dimension 1100/B110 Desktop. Bought November 2005 5 years 5 months ago IE Internet explorer 8 Verizon Fios I have emails/yahoo:gmail:verizon:hotmail 25 Mbps/25 Mbps Microsoft Windows XP Home Edition Version:5.1.2600 Service Pack:3.0 Right now the The files & folders & Documents are on Word Pad*NotePad*PDF FiOS Internet Up to 25 Mbps/25 Mbps McAfee Verizon Internet security suite & Verizon Premium Technical Support Microsoft Windows XP Home Edition Version: 5.1.2600 Memory (RAM)512 MB System Software System Software Date Created Help Microsoft Windows XP Home Edition Monday, August 02, 2010 12:00:00 AM Windows Update BIOS Monday, August 15, 2005 12:00:00 AM View Help Topic Startup Program Group Software Install Date McENUI Monday, August 02, 2010 mcagent_exe Monday, August 02, 2010 VerizonServicepoint.exe Monday, August 02, 2010 igfxpers Monday, August 02, 2010 igfxhkcmd Monday, August 02, 2010 igfxtray Monday, August 02, 2010 SoundMAXPnP Unknown EPSON NX125 NX127 Series Saturday, October 09, 2010 ctfmon.exe Wednesday, August 04, 2004 System :Microsoft Windows XP Home Edition Verion 2002 Service Pack 3 Computer :Intel(R) Celeron(R)CPU2.53GHz 2.53GHz 512 Verizon keeps DickN me around saying my computer is slow because of the memory UM DUH if you uninstall and reinstall you wipe out EVERYTHING I have no programs From Aug 2010 to April 2011 that 8 months I used all the memory Not.I am no Genius But 1. if i try to deframagmitize it says no not enough file to perform and then this>Local Disk >Total Capacity: 74.50 GB Sum of Hard Disks: (C: )Used: 7.15 Free: 67.34 GB says the same info under My Computer Information - Hardware & then this is the best > Hard Disk >Disk Partition:Local Disk (C:)>Usage:10% (Low) OK again not a rocket scientist USAGE LOW. So I was told by a TECH take of all the Verizon McAfee Security The Real Time scan The anti Virus The fire wall just temporarily and then close the browser re open it and go to websites I can completely trust and see if it is faster. Because the speed test shows I have the speed. well I did it a well I was super fast so my Security $5.99 a month since Oct 2009 and My Verizon Premium Technical Support $14.99 Since 0ct 2010 with a 10 month contract is Not actually compatible with my browser. I REALLY NEED HELP

• Answer:

  512mb of RAM is hardly enough. I had a Dimension 1100 and had if i remember rightly something like 3gb Ram. Put your computer details in here http://www.crucial.com and it will tell you what an 1100 is capable of.