Installation / Uninstallation avast! 4

Q: How can I uninstall avast!?

A: You can uninstall avast! just as any other software - using ADD/REMOVE PROGRAMS in Control Panel. If any problem appears, use the avast! uninstall utility.

The exact way:

1. Click on START button.
2. Select SETTINGS -> CONTROL PANEL (or simply CONTROL PANEL - it depends on your Windows version) -> ADD/REMOVE PROGRAMS.
3. From the list of installed applications select avast! Antivirus and click on CHANGE/REMOVE button.
4. avast! setup starts. Select UNINSTALL and click on NEXT.

Q: I just downloaded avast!, and when I try to install it, I get this message: "Invalid file signature. Error 2000000B"... What's the problem?

A: The problem is that the downloaded file is corrupted. The easiest way to solve this problem is to download the program again.

Q: Should I uninstall other anti-virus programs (Norton Antivirus, McAfee, AVG, Kaspersky Antivirus etc.) before installing avast!?

A: Yes. Using two or more antivirus programs can cause problems and the operating system may become unstable.

Q: My new avast! setup is warning me that I don't have ODBC drivers installed. How exactly do I get them?

A: You can download the ODBC drivers from Microsoft website.

Q: I can't uninstall avast! via "ADD/REMOVE PROGRAMS" in control panel. What else can I do?

A: You can download our uninstall utility called AvClear or AvClear4 (it depends on the version of avast! installed on your computer) which will remove it. Please find more information by clicking here.