Frequently asked questions (FAQ)

Here you can find the answers to the most important questions regarding our products. For detailed instructions, please see the Avira Knowledge Base.

New: Upgrade to Avira version 10 products

General: Which products are affected?

General: Which are the changes in this release?

General: How do I find out, when Version 10 is available?

General: When should I upgrade to the new version 10?

General: How does the migration work?

General: What should I observe before migrating from AV9 to AV10?

General: Is a restart required after update?

General: Which configuration settings are kept in AV10?

General: Why is the Configuration of managed computers gray?

AV10: How can I control a necessary restart?

AV10: Why are quarantined files deleted during upgrade from AV8 to AV10?

AV10: Why can't I see the minimized update process in the upper-right corner of the screen anymore?

AV10: How can I reactivate the AntiVir update slide-up, after I deactivated it?

AV10: Why is the Last update status "Not performed" after migration?

AV10: Why is AV10 running in demo mode after migration?

AV10: Where do I find the new ParentalControl feature to schedule the surfing time in the Premium Security Suite?

AV10: What is Avira AntiVir ProActiv?

AV10: Avira AntiVir ProActiv not available for 64 Bit systems

AV10: Why can't I use Avira AntiVir ProActiv on Windows 2000 systems?

AV10: VMware connection is blocked, when Firewall is active

AV10: Why do the AntiVir modules stop after the update to AV10? (fixed)

AV10: How can I deactivate the protection against the autostart function?

AV10: Slideup "Warning! Administrator rights" since version 10

AV10: Firewall: What is the difference between Privileged and Filtered?

AV10: Firewall: What is the GameMode?

AV10: Update to AV10 in connection with enteo v6 NetInstall causes a blue screen

AV10: Why is it possible to stop the scanner, although the option is deactivated in the configuration? (fixed)

AV10: Why doesn't the scan stop? (fixed)

AV10: Why do I get a message using daemon tools (Lite) during the scan? (fixed)

AV10: Why do I receive a message about "hidden objects"? (fixed)

AV10: Windows 2000: Entry point in MSVCP90.dll not found

AV10: Transmission of emails isn't possible, error message: Message contains NUL characters

AV10: How to migrate to AntiVir Server 10 (Windows)?

SMC: How is the migration of Professional products done via SMC 2.5?

SMC: How can i remove old AV8 Registrykeys via SMC?

SMC: Why are local product changes not applied?

SMC: Why is a Client updated hourly, although managed via SMC? (fixed)

SMC: Slide-ups appear, although managed via SMC (fixed)

SMC: Upgrade of Avira AntiVir Professional 9 to 10 failed

New: Upgrade to Avira UNIX products version 3

General: Which Unix products are affected?

General: Which are the interesting new features?

General: When should I upgrade to the new version?

General: What should I observe, before migration?

General: Is my old configuration saved?

General: How do I run updates in the new version?

General: Where can I find my license information?

General: Where do I find my version information?

Server/Workstation 3: How do I uninstall the old version?

Server/Workstation 3: How do I install the new version?

Server/Workstation 3: How do I install DazukoFS (Dazuko 3)?

Server/Workstation 3: Where are the settings for on-access scanner (AVGuard)?

Server/Workstation 3: How can I run a scanner command?

Server/Workstation 3: How do I configure the Quarantine?

WebGate: How to uninstall the old WebGate version?

WebGate: How to install the new WebGate version?

MailGate: How to uninstall the old MailGate version?

MailGate: How to install the new MailGate version?

Avira News

IUM workaround for failing client authentication

Information about the nVDF-Update

Termination of Avira WebProtector on 31.03.2010

Avira General

How can I request the Support phone number for Avira Premium products?

Beware of false AntiVir providers

The Avira icon has disappeared from the tray in Windows 7

Incompatibility with "Norton Safety Minder"

Is Avira AntiVir SharePoint scanning documents only at upload?

Why should I call an expensive Hotline, if a product I bought does not run properly?

My Avira AntiVir Personal has expired. Is the product no longer free?

AV9: Avira AntiVir Premium and Avira Premium Security Suite monitor IMAP email accounts

AntiVir box campaigns at retailers

How do I upload files on Avira Support's FTP-Server?

Why can't I see all configuration options in Avira Professional Version 9?

One activation code for 3PCs

May I give my license to others or offer it for download?

Is it necessarry to scan manually from time to time?

Where can I find detailed version information?

How do I know if AntiVir is up to date?

What is an incremental VDF update (IVDF)?

Would it be wrong to install multiple antivirus programs in parallel?

Where can I get a test license for Avira AntiVir Premium/ Security Suite?

Why does Avira GmbH offer freeware?

Is there any difference between the virus detection of Avira AntiVir Personal and Premium?

What is the difference between AV Guard and AV MailGuard?

Which AntiVir version contains a firewall?

What is heuristic?

What exactly does "Use smart extensions"mean?

Does AntiVir detect DLL injections?

Does Avira supply spam protection for private users?

Which sections of the file are scanned?

Where can I see which AntiVir product is installed?

To what extent does Avira support Windows Vista?

How can I obtain the AntiVir software?

Can I obtain a CD with the AntiVir software?

Does the download of the installation file for AntiVir software cost anything? Are there additional costs?

Is the source code of the AntiVir programs for Linux freely available?

Why can I not log in to the forum with my user data from the Online Shop?

How can I obtain a license file?

Why can't I open the license key?

Why haven't I received my license key by email?

Securing the license file on an external data support.

What is the Auerbach Foundation?

SMC: Why are the product's local settings not saved?

What is cleverbridge?

I can't find an answer to my question here. What should I do?

Avira Vulnerabilities

Archive handling bypass

Bypass/evasion with various embedded archive types

Generic PDF bypass

Generic ZIP bypass/evasion

Null Pointer Reference

Null Pointer Reference

Priviledge escalation + Autostart vector

Divide by zero's in UPX files

Infinite loop in TAR archives

AVPack aborts extraction because of invalid packed size archives

Problems when parsing manipulated RAR archives (support for high version numbers)

CAB: Extraction aborted because of manipulated CAB archives

Access violation in LZH archives

CAB: Extraction aborted because of invalid version number

All about Malware

Does it matter if I use a 32 or a 64-bit Windows system?

Information about W32/Induc.A.

How frequently are VDF-updates available?

How to disinfect your website

How to remove viruses

How can I safely test my antivirus program?

A PHISH detection appeared during an AntiVir scan. What should I do?

Scareware / Rogueware

What are Rootkits?

I have received a HEUR virus warning. What should I do now?

What is the difference between on-access and on-demand scanning?

Where do the unusual file names in the logfile come from?

Most popular topics