avast keeps getting knocked out

my avast keeps going down ive unloaded it reloaded it and its still keeps failing.when i run ewido its finding viruses but there getting past my avast and then its sayng its not working is there a virus you cant find

Try running Trend Micro sysclean and McAfee Stinger in safe mode.

Links here:

http://www.geocities.com/dontsurfinthenude/antivir2.htm

If the computer is then more stable, run a scan with Ewido.

After that you should be able to reinstall avast!

What do you mean?
Can’t you let the providers running?
Are you using any other antivirus or security program?
Which is your Windows, firewall, etc.?