I installed the internet security 6.0 last night and the entire system has slowed down, in particular internet browsing. What used to take milliseconds now takes 3-4 seconds.
I uninstalled my last security software, restarted, then installed the new avast, so no conflict there.
I am on XP, windows seems to have reset some of the security settings, I am changing them as they appear.
Any suggestions on what settings need tweaking?
Gary
Welcome to the forum, 
Which Anti Virus Program was on your system before you installed avast! ???
How Did you remove it ???
Instructions for totally removing 3rd Party AV programs can be found here.
Bob
Thank you for your quick reply, I read the instructions on the link you provided and that was the method that I had used to uninstall Avira. I did receive the message that all had been uninstalled.
Any suggestions?
Gary
You mentioned changing settings. Can you be more specific ???
@ Gary,
It would also help to know more about your system. How much Ram etc.
What other security programs are installed and/ or running on your system ???
In internet explorer, I was receiving a security warning about mixed content (http&https), I changed that setting.
System is Windows XP, 4 gig of ram. No other security software on the machine.
One thought I had was in that minute that I did not have a security package installed, windows might have restored some of its security settings. I lowered all the settings, still very sluggish.
Firefox 6 is very slow…too slow to live with.
The only difference from yesterday to today is the addition of Avast. Yesterday, system ran at acceptable speeds.
Again, thank you for your help.
Gary
Gary,
To eliminate any possibility of a conflict, please try the following:
You’ve already downloaded avast! Just make sure you know where it is when it’s time to re-install it.
Download the REMOVAL TOOL for your current Anti Virus Program by following the Guide offered here:
How do I remove old third-party antivirus software before installing avast!?
https://support.avast.com/index.php?languageid=1&group=eng&_m=knowledgebase&_a=viewarticle&kbarticleid=574
02a. Download the removal tool for avast! Antivirus : http://files.avast.com/files/eng/aswclear6.exe)
Once these programs are saved to your computer in a folder that you can locate or,
to the desktop and, you can easily identify these files, DISCONNECT FROM THE INTERNET
Re-run the removal tool for your old AV program.
Reboot your system.
Uninstall avast! using the Add/Remove function in the Control Panel - Reboot
Run the removal tool for avast saved in step #2a
When the tool finishes running, again Reboot your system.
Install avast! by running the program downloaded in step #1
Shut down your system – Reconnect to the internet – Start your computer.
Once these steps are done, we know you have a clean installation of avast! without any conflicts
from your previous AV.
Hopefully you’ll now also have a well running operating system.
Please post back and report.
Thanks.
Bob
I will give that a try, I wont be able to do this until later tonight since I work on my computer.
I’ll let you know how I make out.
Thanks again
Gary
Your welcome. Good luck.
Bob
I did not go through the re-install of the program because the way you described it was the way that I had originally installed, so I have a clean install. I also was concerned that because I am the 30 trial it might not re-install and the thought of searching for anti-virus software without protection sent shivers up my spine.
I reset the setting to default and that helped some, but not enough.
The last AV that I had purchased was ESET, and I removed that according to the methods recommended. I wanted a smaller footprint so I tried Avira, however I was not happy with it. Again, this was removed first then the install of Avast.
Both previous packages did not slow the computer down like avast has.
Any other suggestions before I go off to find its replacement?
Thank you for your help.
Gary
Hello Gary,
Since this is your computer, I can only give you advice.
You have to make the final decision whether to follow them or not.
At this point, I’m also not sure if there aren’t also remnants from your previous
install of Avira remaining in the registry.
I’ve used avast! since 2003 and chose it because it was and still is light on system resources.
Which SP…??
Bob
I use Registry Mechanic to regularly clean the registry. And I did uninstall Avira the way you had recommended, so I did not see the benefit of the re-do.
One of the reasons I chose to try Avast is exactly that reason, a small drain on the system, and it shows about 30k usage, but the slow down is not livable.
Asyn
SP3
Thank you both for your help. I really dont want to go through the process of reading all the reviews and trying a new one, but the lag is huge.
Avast is the lightest av on the market afaik and iv tested quite a few, you might find that registry mechanic has removed something required from your registry ??? stick to ccleaners registry cleaning.
Anyway a clean install of avast should help you, uninstall avast normally then reboot into safe mode and run the removal tool then boot back into normal mode and run ccleaner then reinstall avast, register your copy then reboot your system.
Any other suggestions before I go off to find its replacement?
gwpaul,
I suggest MSE. http://www.microsoft.com/en-us/security_essentials/default.aspx
I hope it works for you.
I hope that someday you will give avast another try. It’s very good and light.
IMHO, MSE is lighter than avast.
MSE is also know as Security Essentials. 
-1
@gwpaul
Stick with craigb’s advice:
http://forum.avast.com/index.php?topic=84480.msg687287#msg687287
+1
I agree with YoKenny but I don’t recommend you using registry cleaners through… 
The last time I used Ccleaner to clean my registry my VLC icon was gone ><“”
Never had a problem with CCleaner removing my VLC icon even with its registry cleaner.
Cough cough hang on im choking, what a load of crap :
Shiw Liang ccleaner has not removed any vlc player stuff from my systems, it’s never removed anything that it shouldn’t have for me and i run it before shut down everyday.