Avast version: 6.0.1091.0
Prior Protection: Symantec Corporate Antivirus/Firewall (very old version), K9 Web Protection
All prior software was removed via Add/Remove Programs.
Symantec requires uninstallation with their uninstaller tool, not by Add/Remove Programs. So this software most likely is still on your machine and this is why you are having difficulty installing Avast. Please run the Symantec Uninstaller Tool as I suspect this is your major problem with remnants:
Download and run the
Norton/Symantec removal tool from here to clear them
http://us.norton.com/support/kb/web_view.jsp?wv_type=public_web&docurl=20080710133834ENSince Symantec is known to leave remnants behind, you can also go into Safe Mode (hit F8 repeatedly upon boot up), once in Safe Mode go to Advance Search > enter "sym" into the search box and see if anything comes up. Do the same but type in symlcbrd.sys , which is a Symantec Core Service BIOS reader. Do it again but type in Symantec, and again but type in NIS or NAV (depending on what you had installed on the machine). If you are uncertain of the files that come up on the search, right click on the file to show you Properties and you can tell if it belongs to Symantec...if it does you can delete it then empty your recycle bin and
reboot your machine.
To uninstall K9:
http://www1.k9webprotection.com/support/kb/K9146.htmlhttp://internet-security-tips.com/blog/2009/how-do-you-uninstall-k9-web-protection-without-password/.
Reboot.
Your other option is to to a search in Safe Mode to check for remnants.
When you "removed" Avast, did you do this using the Avast Uninstaller tool?
http://files.avast.com/files/eng/aswclear6.exe.
I would first download the Avast installation file for v. 6.0.1091:
1. Save a copy of Avast (the product you want) and save it to your HDD:
http://www.avast.com/download-software – all products (Free, Pro, AIS)
2. Download the Avast Uninstall Utility
http://files.avast.com/files/eng/aswclear6.exe and save it to your HDD.
3. Disconnect from the Internet at this time.
4. Go to Control Panel and uninstall Avast through Add/Remove Programs if possible and reboot.
5. If Step 4 fails, boot into
Safe Mode (hit F8 repeatedly) and run the Avast Uninstall Tool.
If you had a prior version or product of Avast, uninstall one at a time then reboot and repeat the process in Safe Mode again.
6.
Reboot.
7. Install the newest version of Avast and
reboot.
8. Get Internet access and register your copy or add the license key for Free, Pro, or AIS.
9. Update the Avast definitions.
If all goes well after the other unstallations and clean install of Avast, you should check your machine for outdated software since it changes rapidly. A good free scanner is Secunia PSI
http://secunia.com/vulnerability_scanning/personal/, which many of us use here weekly. In addition, this site will give you the vendor's direct download link if an update to a software is needed. Right now there is a new java update. You also keep an eye on the Support are of this forum to keep informed up updates and links as well. But running the PSI scan will be a quick way to see if you need something.
Let me know how things go. Thank you.
