Internet blocked on startup

Avast Free Antivirus / Premium Security
1

I’ve been a user of Avast for several years and have been very happy with it. However, recently I’ve started having a problem accessing the internet after starting the computer.

I’m running Windows 7 and I have a wired connection to the internet.

If I uninstall Avast pro, everything is fine. I can then install Avast and it works, as long as I don’t turn the computer off (sleep is fine).

I can’t find any viruses on the computer. When I first had the problem, I brought the computer to the local Geek Squad and they cleaned the computer. But, they needed to uninstall Avast to get the computer to connect to the internet. So they blamed Avast for the problem, charged me for the service and sent me home.

I reinstalled Avast Pro and everything seemed to be OK but now I have the problem back.

Any suggestions?

2

Which is your firewall?
Any other security program that could interfere?

3

I’m using the Windows firewall.

I have no other security programs. All have been removed.

4

What security programs did you have, and how did you remove them? Sometimes remnants of security programs can cause conflicts with AV’s.

You may also want to try an Avast Repair to see if this helps:

  • Go to Control Panel > Add/Remove programs > Avast Antivirus.
  • Scroll down and choose Repair function in the pop-up window.
  • Reboot.

However, I still need to know the answer to my above question. Thank you.

5

McAfee for sure, maybe Norton. I removed them soon after getting the computer a couple years ago and I didn’t note what I removed.

I removed them using the Windows Repair/Remove utility.

Right now, I’m running without security which makes me nervous. I need to decide soon what I’m putting on.

6

I would suggest going to this site http://uninstallers.blogspot.com/ and download the removal tool’s for both of those av’s McAfee,Norton and run the tools before you try to install avast again, both of those av’s leave alot of rubbish behind and need the tools to delet them properly.

7

Having McAfee or Norton on the system at one time will cause problems.

Make sure they are completley removed with their removal programs.

http://www.pchell.com/virus/uninstallmcafee.shtml

Get McAfee Removal Tool

Download and run the Norton Removal Tool to uninstall your Norton product
http://us.norton.com/support/kb/web_view.jsp?wv_type=public_web&docurl=20080710133834EN&ln=en_US

8

OK! I’ve run the cleanup software and downloaded and installed the latest Avast Pro.

So far, so good.

I’ll be back if I experience more problems.

Thanks for the help!

9

So true unfortunately so true.

10

Your welcome

11

I recently had this problem too!

One of the extra tools (NetMon or something like that) included in Advanced SystemCare Pro 3.7.2 caused the problem, found the solution for it on their forums, an uninstaller and an updated version of the tool.

12

You cant run advanced system care with avast as there is an av in ASC and you cant have two av’s, iobit is also an untrustworthy company who steal from other company’s and shouldn’t be allowed any hard disc space on anyone’s computer.

13

That’s not correct, there is a link for “IObit Security 360” and the “Spyware Removal” component just checks for bad registry entries and cookies.

14

@ ckit,

If you do a search on this forum, you will notice that there are multiple issues with ASC and iobit and BOTH software conflict with Avast as well as other security software. Users who have had either or both software on their machines have needed to uninstall the software for Avast to work properly. In addition, the Pro version of ASC contains an AV. Uninstalled ASC and iobit often leave remnants, so going into Safe Mode to search is recommended. Users who have uninstalled are now happy they did.

I used to use ASC years ago and consider it bloat-ware and a memory hog. You can use CCleaner, a freeware system optimization, privacy and cleaning tool. There is a Slim version available as well at http://www.piriform.com/ccleaner/builds – 4th option down. It removes unused files (cache, temporary Internet files, etc.) from your system, allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces (encrypts) of your online activities such as your Internet history. Additionally it contains a fully featured registry cleaner. Likewise you can use free Puran Defraggler http://www.puransoftware.com/, which does a regular and boot-time defrag. Both software are extremely light on your system and very quick.

15

It is correct as SafeSurf has supplied a bit more information about it for you, plus there is no relevance between your post and what the op’s problem was.