My computer is running to slow is it because i have a virus and if so how would i no..?

or is it because i have norton security i have bin told norton runs to slow

My computer is running to slow is it because i have a virus and if so how would i no..?internet security software

When was the last time you defregemented the hard drive?

To defragment:

Click My Computer

Right click on the C: drive.

Click on Properties.

Select Tools

Select Defragment

My computer is running to slow is it because i have a virus and if so how would i no..?moto guzzi

what u need is an all in one pc tuneup utility like auslogics boostspeed. try the trial version and run the various optimization programs. if you think u have a virus, download free or trial version of kaspersky,bitdefender or NOD32 and scan.if not , ur norton is safe.
close the unwanted programs on the bottom right of the screen, they eat ur RAM
Get rid of Norton, and install any/all of the following:

AVG Free Edition, Avast Free Edition, Avira Antivir Free Edition.

Run it/them to check for viruses. Then download Adaware (by Lavasoft) and Yahoo Anti-Spy. Run them both to check for spyware/adware. I would suggest Spyware Search and Destroy but that tends to use a lot of system resources.

Also, check to see how many items are in your startup list under start, all programs, startup items. Or something similar to that, I forget exactly what the folder is called. You could have a bunch of processes and programs running in the background that you don't know about. Make sure any programs you aren't using are closed. They could be hiding in the System Tray.
If you had a virus Norton would have found it, you should do a disk error check and disk defragmenter to improve your pc's performance.
Reduce the number of items on your startup list. Uninstall all unwanted programs and remove junk from the drive. Have enough free space at all times. If its overloaded and cluttered with fragments, everything including startup will take ages. Fragmentation is a disease which debilitates drive and PC performance in general.

How much RAM do you have? Atleast 1 GB is good if you have a lot of programs running.

Switch to AVG if Norton is slowing things down.
After using a computer for a while, installing and uninstalling programs, creating and deleting items your operating system and hard drive can get clustered.

I would recommend reformatting your hard drive and installing a clean copy of your operating system, I do this about once a year.

If that's not an option I would recommend de-fragmenting your hard drive about once a month.
no nortan do not run slow it is like that if u on a site