Uninstalling other antivirus software

Before installing Avast Premium Security or Avast Free Antivirus, you must first ensure that no other antivirus applications (including expired or trial versions) are installed on your Windows device. When multiple antivirus applications are installed on one Windows device, conflicts such as false-positive detections, performance degradation, and system instability occur.

It is only possible to use Avast Antivirus alongside another antivirus application if Avast Antivirus is running in passive mode. For more information, refer to the following article: Using Passive Mode in Avast Antivirus.

Uninstall other antivirus software

The following links direct you to the websites of other antivirus software providers for uninstallation instructions. Avast is not responsible for any of the content on the linked web pages. If the antivirus program you are trying to uninstall is not in the list, refer to the application's support website.

It is not possible to uninstall Microsoft Windows Defender. However, Microsoft Windows Defender disables automatically to allow Avast Antivirus to install correctly.

A | B | C | D | E | F | G | K | M | N | P | Q | S | T | W

A

B

BitDefender antivirus software uninstallation

C

D

Dr. Web antivirus software uninstallation (for registered Dr. Web users only)

E

F

F-Secure antivirus software uninstallation

G

G DATA antivirus software uninstallation

K

Kaspersky antivirus software uninstallation

M

N

Norton antivirus software uninstallation

P

Panda antivirus software uninstallation

Q

S

Spybot Search & Destroy antivirus software uninstallation

T

W

WebRoot antivirus software uninstallation

Z

ZoneAlarm antivirus software uninstallation

Before installing Avast Premium Security or Avast Security, you must first ensure that no other antivirus applications (including expired or trial versions) are installed on your Mac. When multiple antivirus applications are installed on one Mac, conflicts such as false-positive detections, performance degradation, and system instability occur.