Removing security software

[grumpygit]

Some security software is difficult to fully remove from your system. If remnants are left behind after uninstalling it can cause problems.

Often when a new security software installation fails it is because it is conflicting with remnants of a previously used product that has not been fully removed.

Remnants of old security software can cause problems by conflicting with your current security and can also slow your system down.
It's just the same as running 2 real time antivirus programmes. Which you should never do.

Often simply uninstalling using add/remove programs is not enough. Usually this will either not uninstall or it will remove the main parts of the product but leave remnants behind.

Most security companies have removal tools to help cure this.
Below is a list of links to various manufacturers removal help tools and advice.

Bit Defender
Kaspersky
McAfee
ESET/Nod32
Norton
Panda
Trend Micro
Avast
AVG
Avira
CA Antivirus
Dr. Web
F-Secure
Norman Antivirus
Windows Live OneCare

In addition there are various specialised uninstaller tools available

Revo Uninstaller
CCleaner

It's also worth trying the Windows Installer CleanUp Utility.

If you have any problems using these tools or need any other help or advice, please post your questions in General Computer Security.