Avira Free Antivirus for Windows version 15.0.26.48 (April 27th, 2017) is available

Avira GmbH has released an Update version 15.0.26.48 of Avira Free Antivirus for Windows. This new release includes a number of improved features and minor bug fixes.

Overview
Avira Free Antivirus is the popular and easiest to use, free virus scanners. With pushbutton convenience, this free program removes viruses, rootkits and other malware. With the exclusive SearchFree Toolbar, you’ll also maximize your safety on the web and block advertisers from tracking you online.

Free Antivirus includes Secure Backup with offering 5GB of free online storage and Windows Firewall control. The Notifier ads has been dropped from Free Antivirus 2015. More information about Avira Free Antivirus 15.0 available here.

Features Highlight
Avira Free Antivirus 15.0 contains several great features listed below.
  • Antivirus Scanner: Total protection from malware.
  • Browser Tracking Blocker*: Prevents ad networks from monitoring what you do online.
  • Real-time cloud protection: Protects you from emerging threats.
  • Safe Browsing*: Blocks harmful websites before they load.
  • Blocks PUA: Blocks hidden applications bundled with legitimate software.
  • Deal Finder*: Saves you money while shopping online.

*These features are included with Avira Browser Safety – a browser extension for Chrome, Firefox, Opera and Internet Explorer.

Download Avira Free Antivirus 15.0
Avira Free Antivirus for Windows is available at the following website. Download the files most appropriate for you.

Also available for Android, Mac and iPhone and iPad.

Note: Avira Free Antivirus is free for personal use only.

What's new?
Avira Free Antivirus for Windows 15.0.26.48 includes the following: [April 27th, 2017]

Improvements
  • Rework the user interface flow of update in case predictable reboots.
  • New Scanner (shell extension scanner) writes specific warnings from AIRS, Engine and LocalDecider into the scanner log file (separate log files for each scan session).
  • New Scanner users can scan their EFS-encrypted files.

Bug fixes
  • Fixed AVIRA IPC Server Multiple Out-of-bounds Write Vulnerabilities.
  • Improved process protection for scanui.exe. (It was possible to kill scanui.exe with Process Protection option active).
  • Several New Scanner (shell extension scanner) fixes.
  • Fixed unresponsive system due to Real-Time Protection re-initialization.
  • Fixed possible hanging / frozen system on Windows 10 RS1 if Antivirus is installed.
  • Fixed Real-Time Protection crash on Windows 10 RS2.
  • Improved IPM handling in special circumstances.

Avira Free Antivirus for Windows 15.0.25.171 includes the following: [March 21th, 2017]

Improvements
  • Support Avira Prime licenses. (Expiration date related user interface elements are not displayed for the Avira Prime license type)
  • Improved IPM handling in special circumstances.

Bug fixes
  • Fixed system freezes after reboot.

Avira Free Antivirus for Windows 15.0.25.154 includes the following: [February 21th, 2017]

Improvements
  • The new scanner (shell extension scanner) is reporting product events (EventDB) similar to the old scanner.
  • The new scanner (shell extension scanner) is reporting Windows events similar to the old scanner.
  • Changed "Send Feedback" in the user interface to the new tableau backend.

Bug fixes
  • Fixed WER bug reported by Microsoft.
  • Improved internal communication.
  • More reliable event notification trigger via WMI.
  • Avira Guard caused unresponsive system due to guard re-initialization.

Avira Free Antivirus 15.0 Update 17 (15.0.17.273) includes the following: [April, 2016]
  • n/a

Avira Free Antivirus 15.0 Update 16 (15.0.16.282) includes the following: [February 29th, 2016]
Improvements
  • Improved reboot handling for Updates.
  • Updated to the latest OpenSSL library.
  • Improved Repair capabilities & performance.
  • Added Registry Sensors for better behavior-based detection.
  • Added feature to send email alerts in Antivirus Pro and Server.
  • Improved cloud detection capabilities.
  • Improved handling of a huge number of scanner detection in interactive mode.

Bug fixes
  • The scanner hangs after canceling with detection (Cancel also detection popup).
  • Social media buttons of the OnDemand scanner are clickable only once.
  • The Web Protection is blocking POST requests.
  • The Web Protection is crashing on service start.
  • Enabled Web Protection feature causes hanging RDP login and system.
  • Avira components are crashing after Windows 10 November release 10586 upgrade.
  • The OnDemand scanner crashes with snapshot driver.
  • The Mail Protection crashes after fetching emails via IMAP and Outlook 2007.
  • .CAT files are not removed during/after uninstallation.
  • Strange entry "S:s" in webguard.log after scan password encrypted files.
  • Updater doesn't evaluate correctly rootkit.avp.
  • No more possible to change the configuration of the managed Antivirus Professional installations. (14.0.15.87).
  • The process hangs during license change.
  • Registry scan with detection is not mentioned in the GUI and logfile.
  • The Real-Time Protection does not detect any malware anymore together with RDP connection.
  • Memory leak is causing a waste of 700MB in less than three days.
  • Configured TEMP folder in 'General' subpage is not taken into account.
  • No detection entry in avguard.log when running an infected file multiple times.
  • "Download repair tool" link from the detection popup window is not accurate.
  • Shut down dialog for scheduled scan and backup jobs has broken button and useless link.
  • Missing key name entry in in gurard_slideup.avp.
  • Wrong filename displayed in the slide-up if the file has '&' char in its name.
  • The filename is not displayed in the slide up detection window if the file length exceeds 49 chars.
  • Working directory not set to product installation path.
  • There must not be any environment variables used in paths when desktop and program group icon are created.
  • On Windows XP the scanner waits for a user interaction after detection even if no user is logged in.
  • If "user" is in invalid state. FACT returns missing mandatory parameters.
  • Update.exe validation timeout is defined two times with different values.
  • Catalog file for WFP driver (avnetflt.cat) not installed into system32/catroot/{F7... folder like for all other drivers.
  • The "Updating license file" dialog is not visible anymore on Windows XP.
  • Detection email cannot resolve some specific component variables mentioned in help file.
  • The Scanner hangs if option for scanning Registry is enabled.
  • Fixed problem in license autorenewal.
  • Stability improvement for Real-Time Protection in modify installations.
  • Fixed issue where configuration couldn't be changed via WMI on Windows XP.
  • Changed wording in alert messages.
  • Fixed a sporadic crash in WMI.
  • Increased scan speed in interactive mode in case of many detections.
  • Reduce the time to display the result window for high number of detections in interactive mode.
  • Fix for Virtual Box issue.

Avira Free Antivirus 15.0 Update 15.1 (15.0.15.129) includes the following: [December 10, 2015]
Improvements
  • Harden Antivirus against malware attacks against the product.
  • Execute an update before a scheduled scan to ensure latest signatures.
  • Use Extended Validation Certificate (EV).

Bug fixes
  • Stability improvements.
  • Fixed a BSOD on some customer systems, when http traffic was send on an non http port.
  • Fixed a bug, where the scheduler service was crashing when a job had to start after the logon to the system.

Avira Free Antivirus 15.0 Update 14 includes the following: [November 10, 2015]
Improvements
  • Initial release Avira Antivirus Server product.
  • Enhancement for Avira intelligent repair system (AIRS).
  • Improved protection cloud communication.
  • Closed vulnerability where malware was able to hide from Antivirus.
  • Trigger a silent update in case of a corrupt scheduler job.
  • Add an uninstall verification page.
  • WMI access to Antivirus can be configured for read/write access.
  • Product settings are kept for up- and downgrades of the Antivirus 2015 products.

Bug fixes
  • Temporary update files are always deleted.
  • The setup also copies 64bit LSP (avsda64.dll) even if filelist.ini and the updater control file does not contain this action for 32bit machines.
  • Improved check for enough disk space to complete an update.
  • Improved updater logging in case the process protection was removed from update.exe.
  • Fixed crash during scan if the option 'follow symbolic link' was used.
  • Removed warning in scan log for pagefile.sys and hiberfil.sys.
  • Improved response time for scheduled tasks at system start time.
  • Stability improvements in update.exe in Antivirus 2014 products.
  • Fixed problem which sometimes caused reboots when repair.rdf was updated.
  • Fixed problem on Windows 10 where "The profile could not be found" error message was generated after a quarantined object was re-scanned.
  • Fixed problems in Mail Protection where emails which contained attachments couldn’t be send if SMTP is enabled.
  • Fixed problem on Windows 10 where Mail Protection shared network feature was not working.
  • Product stablitiy improvements in several modules.
  • Fixed problem on Windows 10 where the Avira Control Center cannot be closed via taskbar.
  • Fixed unexpected reboot after update.
  • Fixed problem where a scan executed as standard user via the shell extension was not possible if the UAC is disabled.
  • Fixed problem where Mail Protection did not scan emails after being re-enabled.
  • Fixed problem where Mail and Web Protection version information where not displayed anymore in the About Window.
  • Fixed problem where product could not contact our license backend after an automatic renewal. That behavior resulted in an invalid license.
  • Fixed problem where the manual quick scan started many instances of avscan.exe.
  • Fixed problem where the refresh button from the quarantine manager was not working.
  • Fixed problem where clicking the Facebook's "Share" button lead to the number of infections in the GUI result window was wrong.
  • Fixed problem where Quarantine re-scans of files bigger than 25 MB were causing a scanner hang.
  • Fixed problem where the launcher crashed after a license exchange from Avira Free Antivirus to Avira Antivirus Pro.
  • Improvements and fixes in license activation.
  • Fixed problem where Setup tried to uninstall WFP on Windows XP.
  • Fixed problem of endless scans caused by our snapshot driver.

Avira Free Antivirus 15.0 Update 13 (15.0.13.202) includes the following: [September 22, 2015]
Improvements:
  • New network protection release
  • Removed HIPS
  • OneKit Server preparation
  • Removed SocialShield page
  • Add configuration if Scan start should show UAC or not
  • The performance has been improved
  • Prohibit installation of OneKit Server for Update 13
  • Do not show WSC messages during update
  • Improved the text of the message box if an update failed to start
  • Send setup reports progress to Avira Launcher

Bug fixes:
  • Temporary user files at selfupdate are not removed
  • The Antivirus renables the Firewall without user interaction
  • After migration, the Antivirus WSC is not correctly registered and Windows Defender is restored as a registered anitvirus on the system
  • The Avira Control Center stops working after you close it from the taskbar
  • After migration from Windows 7/8 x64 with AV15 Update12 to Windows 10 x64 the "avguard.exe" hangs on start and many of minifilter timeouts slow the system
  • The Webloader setup takes 20 mins
  • In case of a selfupdate there are two "upd_bridge" requests
  • The Server reboots by updating "repair.rdf"
  • The setup crashes on Windows XP
  • Increasing memory consumption (leak) when the "avcenter.exe" is opened on page 'Status'
  • The Avira Control Center shows for a few seconds "PC is not safe"
  • The "update.exe" crashes with Update 12 and leads to an engine validation error
  • The error message "The profile could not be found" is generated after a quarantined object is re-scanned
  • Emails containing attachments can not be sent if the SMTP is enabled
  • Different content in downloaded files bigger than 100 MB
  • The possibility to start 2 update tasks in parallel (since Update 12) leads to multiple update errors
  • Leak of memory while downloading files
  • The Web Protection service does not free memory if the AppVerifier is enabled and all the HTTP internet connections will be dropped
  • The Mail Protection does not scan emails after being re-enabled
  • Crash of the "avcenter.exe" with update 12
  • The version information of Mail and Web Protection is not displayed anymore on the About Window
  • Due to an "avcenter" process issue after a license replacement, the license upsell via OTC ends with an empty result dialog

Avira Free Antivirus 15.0 Update 12 (15.0.12.408) includes the following: [July 23, 2015]
Improvements:
  • WMI in Antivirus Pro allows also modification dependent on the configuration setting.
  • Windows Action Center messages are not popping up anymore during setup and licenses change.
  • Update status is now shown in Status Page of Control Center.
  • When a silent scheduled update is running, a click on start update will show the update GUI of the currently running update.
  • Other updater improvements.
  • The Antivirus 2015 Kit size has been reduced by 10%.
  • Improved Win10 migration flow.

Bug fixes:
  • Fixed several bugs.

Avira Free Antivirus 15.0 Update 11 (15.0.11.574) includes the following: [June 9, 2015]
Improvements:
  • Possible migration of all Avira Antivirus Products 2014 to Windows 10
  • The product installation time has been reduced
  • The performance of the Real-Time Protection has been increased
  • Improvement of the PUA function (Potentially Unwanted Application)

Bug fixes:
  • The uninstallation process does not reactivate the Windows Defender on a Windows 8 operating system
  • The System Scanner hangs when scanning the Windows Registry
  • The System Scanner crashes when performing a complete boot sector scan on a Windows 7 home x64-bit operating system
  • The uninstallation process of Avira Free Antivirus does not request a system restart after uninstalling the product
  • The System Scanner hangs when scanning hidden objects
  • The status of the Mail Protection button does not switch to green after a restart of the service
  • The Avira uninstall information publisher shows only the value "Avira" instead of "Avira Operations GmbH & Co. KG"
  • The End User License Agreement of the Avira Antivirus 2015 is outdated
  • Missing product name in the message box after uninstallation
  • The Slide-Up of the Real-Time Protection is not correctly displayed
  • The Mail Protection is displayed as disabled
  • The Password Protection feature displays an incorrect status of the Web Protection
  • The Avira Launcher hangs during a silent installation
  • A missing product license leads to a wrong call in Avira "My Account"
  • The quick system scan schedule job does not start by default after an update
  • The Real-Time protection service can neither be stopped nor configured

Avira Free Antivirus 15.0 Update 10 includes the following: [May 5, 2015]
Improvements:
  • Windows 10 compatibility
  • The system startup time has been improved
  • Support for password protection has been implemented
  • Several Update improvements
  • The previous UI has been re-enabled

Bug fixes:
  • The problem regarding the password protection in the Quarantine has been fixed
  • The issue with the drivers update has been fixed
  • Several internal fixes and improvements


Avira Free Antivirus 15.0 Update 9 includes the following: [March 19, 2015]
Improvements:
  • One Installer for both products Avira Free and Avira Pro.
  • One Webloader for both products Avira Free and Avira Pro.
  • On the fly product upgrade and downgrade based on the used licenses.

Bug fixes:
  • Webguard crash of module libeay32.dll has been fixed.
  • Unnecessary *.dll files from previous kits have been removed.
  • Upload window to Avira cloud has been updated.
  • Webguard crash on program startup has been fixed.
  • The EULA has been updated.

Avira Free Antivirus 15.0 Update 8 includes the following: [February 12, 2015]
Improvements:
  • Revised update mechanism offering more flexibility and better support for scenarios using a proxy.
  • Additional sensors for Behavior-based Detection have been implemented.
  • The Avira Free Antivirus detection update frequency has been increased (default frequency is set on 2h, same as Avira Antivirus Pro).
  • New installations include the new update frequency.
  • Existing installations will not be updated by default. The 2h interval of the detection update has to be set manually by the user (An automatic change of existing installations will be presumably implemented with a future update).

Bug fixes:
  • There are no bug fixes for this update.

Sources:
Avira chnagelogs
Avira - TechBlog
Avira - Support for Home
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