My computer is running very slow and i dont know why, I have used the defrag and clean up and ran many of antivirus programs but nothing seems to work, Please HELP

If your problem is that your computer is very slow and you have upgraded your memory to the maximum, then you should concentrate on cleaning up and optimising the Windows file system.

Download and install the following utility programs that can help you to improve the performance of your computer.

Advanced System Care Free - run the Deep Care option of this utility.
DiskMax - run a Detailed Scan and let it clean up all profiles, updates, cache etc.
Smart Defrag - run a Defrag and Fast Optimize
CCleaner - use this to compliment the above plus use the Tools Uninstall option to remove any unwanted software programs, browser tool bars etc. Also use the Tools Startup option to disable any of the programs being started on every boot that don't need to be, i.e. things like QuickTime, Adobe Reader.

Below are some useful tips for making your PC's performance better.Please follow the below steps and fix your problem.
Eliminate Viruses and Spyware 1 . Run your antivirus program. There may be something slowing your computer that you can remove. It is a good idea to run your antivirus program every week.
2 . Remove spyware. Run a good spyware tool at least twice a month.
3 . Use a pop-up blocker, if you have one. Check your antivirus program.
Dispose of the Extras 1 . Delete your document files for anything you no longer need. Saved pictures, audio and video files in particular can slow your computer.
2 . Remove unwanted programs from the Control Panel area. Old toolbars or games the kids downloaded off the Internet are a good place to start.Look for software you no longer use, such as the old printer you threw out last year.
3 . Clean out your email. Old messages are a constant drain on your computer's resources. Go through every folder, deleting everything you do not need. Leave no mail! Finish by emptying the Deleted Items folder.
4 . Turn off unnecessary programs. Check your task bar for icons that show running programs. Disable anything you are not currently using.
Run Maintenance 1 . Run the Disk Cleanup tool located in your Control Panel. (Windows only. For other operating systems, please check the Resources section below.)This will remove temporary files, cookies and unnecessary components to speed up your computer.
2 . Defragment your computer. Defragging takes some time, but will speed your computer significantly. You can find the tool in your Control Panel.Run it monthly.

Hope the above information will be helpful to you. Thanks for using Fixya.

on a dektop on a laptop focus on the keyboard
try cleaning your computer of dust using a fine air blower from a compressor making very sure there is no MOISTURE in the airline focusing on the central processing unit CPU making sure that there is no MOISTURE in the air line dust causes static to build up in a computer causing it to overheat any many other problems then
you could run the check disk utility
click start run type cmd then type chkdsk/r/f which willscan for and attempt to repair any bad sectors and automatically fix any corrupt files on your hard drive then defragment your hard drive

hope this helps

At this juncture your best bet is to run the msconfig command and see what is running in the background and using up all of your resources.

Antivirus programs are wicked for screwing up a machine, especially Norton. Dump the sucker - might even have to get a special program to accomplish this.

If that does not do it then just backup your files and restore your machine to its as new condition using the software that came with your unit.

If under 256mb ram with windows xp, get some more ram.
Uninstall unwanted programs, remove un needed programs from the startup folder.
There is a complete guide here to clean your computer
http://www.fixya.com/support/r5272277-secure_clean_computers

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1. To increase PC boot speed:
There must be too many programs automatically start when you boot your PC. To manage them, click Run, type in "msconfig", select "Boot", then you can disable unnecessary programs from that list.

2. To increase PC running speed:
* Adding RAM is the most effective method, but if the RAM is already at the maximum, then do the following.
* Run disk cleanup and defragmenter. But to be honest, the built-in Disk Cleanup and Disk Defragmenter run quite slow and they will take you quite a long time, so I never use them. Third-party programs are better.
* Run registry optimizer software and defrag. No Windows built-in tools to do this. Search on google or refer to this free registry cleaner review.

use antivirus norton antivirus 2009 that will help you

Needs to be cleaned - Run antivirus and antispyware program

Have you tried defragging you hard drive lately. Go into my computer, Move the mouse to your hard drive. Select properties. Select tools. Select defragmentation. Follow the instructions on the screen.