Bitdefender Antivirus Free Edition is blazing fast, free to use, and packs essential protection features every Windows computer needs. Downloads and installs in seconds, runs at max speed without slowing down your PC Good for gaming, image and video editing, and resource-intensive applications. Mar 30, 2018.
-->Applies to:
There are two types of updates related to keeping Microsoft Defender Antivirus up to date:
- Security intelligence updates
- Product updates
Important
Keeping Microsoft Defender Antivirus up to date is critical to assure your devices have the latest technology and features needed to protect against new malware and attack techniques.
Code wizard avr free download. This also applies to devices where Microsoft Defender Antivirus is running in passive mode.
Code wizard avr free download. This also applies to devices where Microsoft Defender Antivirus is running in passive mode.
Note
You can use the below URL to find out what are the current versions:https://www.microsoft.com/security/encyclopedia/adlpackages.aspx?action=info
Security intelligence updates
Microsoft Defender Antivirus uses cloud-delivered protection (also called the Microsoft Advanced Protection Service or MAPS) and periodically downloads security intelligence updates to provide protection.
The cloud-delivered protection is always on and requires an active connection to the Internet to function, while the security intelligence updates occur on a scheduled cadence (configurable via policy). See the Utilize Microsoft cloud-provided protection in Microsoft Defender Antivirus topic for more details about enabling and configuring cloud-provided protection.
Engine updates are included with the security intelligence updates and are released on a monthly cadence.
Product updates
Microsoft Defender Antivirus requires monthly updates (KB4052623) (known as 'platform updates'), and will receive major feature updates alongside Windows 10 releases.
You can manage the distribution of updates through Windows Server Update Service (WSUS), with Microsoft Endpoint Configuration Manager, or in the normal manner that you deploy Microsoft and Windows updates to endpoints in your network.For more information, see Manage the sources for Microsoft Defender Antivirus protection updates.
Note
We release these monthly updates in phases. This results in multiple packages showing up in your WSUS server.
Monthly platform and engine versions
For information how to update or how to install the platform update, please see Update for Windows Defender antimalware platform.
All our updates contain:
- performance improvements
- serviceability improvements
- integration improvements (Cloud, MTP)
Security intelligence update version: 1.323.9.0
Released: August 27, 2020
Platform: 4.18.2008.9
Engine: 1.1.17400.5
Support phase: Security and Critical Updates
Released: August 27, 2020
Platform: 4.18.2008.9
Engine: 1.1.17400.5
Support phase: Security and Critical Updates
What's new
- Add more telemetry events
- Improved scan event telemetry
- Improved behavior monitoring for memory scans
- Improved macro streams scanning
- Added 'AMRunningMode' to Get-MpComputerStatus Powershell CmdLet
Known Issues
No known issues
Security intelligence update version: 1.321.30.0
Released: July 28, 2020
Platform: 4.18.2007.8
Engine: 1.1.17300.4
Support phase: Security and Critical Updates
Released: July 28, 2020
Platform: 4.18.2007.8
Engine: 1.1.17300.4
Support phase: Security and Critical Updates
What's new
- Improved telemetry for BITS
- Improved Authenticode code signing certificate validation
Known Issues
No known issues
Security intelligence update version: 1.319.20.0
Released: June 22, 2020
Platform: 4.18.2006.10
Engine: 1.1.17200.2
Support phase: Security and Critical Updates
Released: June 22, 2020
Platform: 4.18.2006.10
Engine: 1.1.17200.2
Support phase: Security and Critical Updates
What's new
- Possibility to specify the location of the support logs
- Skipping aggressive catchup scan in Passive mode.
- Allow Defender to update on metered connections
- Fixed performance tuning when caching is disabled
- Fixed registry query
- Fixed scantime randomization in ADMX
Known Issues
No known issues
Security intelligence update version: 1.317.20.0
Released: May 26, 2020
Platform: 4.18.2005.4
Engine: 1.1.17100.2
Support phase: Technical upgrade Support (Only)
Released: May 26, 2020
Platform: 4.18.2005.4
Engine: 1.1.17100.2
Support phase: Technical upgrade Support (Only)
What's new
- Improved logging for scan events
- Improved user mode crash handling.
- Added event tracing for Tamper protection
- Fixed AMSI Sample submission
- Fixed AMSI Cloud blocking
- Fixed Security update install log
Known Issues
No known issues
Security intelligence update version: 1.315.12.0
Released: April 30, 2020
Platform: 4.18.2004.6
Engine: 1.1.17000.2
Support phase: Technical upgrade Support (Only)
Released: April 30, 2020
Platform: 4.18.2004.6
Engine: 1.1.17000.2
Support phase: Technical upgrade Support (Only)
What's new
- WDfilter improvements
- Add more actionable event data to ASR detection events
- Fixed version information in diagnostic data and WMI
- Fixed incorrect platform version in UI after platform update
- Dynamic URL intel for Fileless threat protection
- UEFI scan capability
- Extend logging for updates
Known Issues
No known issues
Security intelligence update version: 1.313.8.0
Released: March 24, 2020
Platform: 4.18.2003.8
Engine: 1.1.16900.4
Support phase: Technical upgrade Support (Only)
Released: March 24, 2020
Platform: 4.18.2003.8
Engine: 1.1.16900.4
Support phase: Technical upgrade Support (Only)
What's new
- CPU Throttling option added to MpCmdRun
- Improve diagnostic capability
- reduce Security intelligence timeout (5min)
- Extend AMSI engine internal log capability
- Improve notification for process blocking
Known Issues
Windows Defender Antivirus Download Free
[Fixed] Microsoft Defender Antivirus is skipping files when running a scan.
Security intelligence update version: 1.311.4.0
Released: February 25, 2020
Platform/Client: -
Engine: 1.1.16800.2
Support phase: N/A
Released: February 25, 2020
Platform/Client: -
Engine: 1.1.16800.2
Support phase: N/A
What's new
Known Issues
No known issues
Security intelligence update version: 1.309.32.0
Released: January 30, 2020
Platform/Client: 4.18.2001.10
Engine: 1.1.16700.2
Support phase: Technical upgrade Support (Only)
Released: January 30, 2020
Platform/Client: 4.18.2001.10
Engine: 1.1.16700.2
Support phase: Technical upgrade Support (Only)
What's new
- Fixed BSOD on WS2016 with Exchange
- Support platform updates when TMP is redirected to network path
- Platform and engine versions are added to WDSI
- extend Emergency signature update to passive mode
- Fix 4.18.1911.3 hang
Known Issues
[Fixed] devices utilizing modern standby mode may experience a hang with the Windows Defender filter driver that results in a gap of protection. Affected machines appear to the customer as having not updated to the latest antimalware platform.
Important
This updates is needed by RS1 devices running lower version of the platform to support SHA2.
This update has reboot flag for systems that are experiencing the hang issue.
the This update is re-released in April 2020 and will not be superseded by newer updates to keep future availability.
This update has reboot flag for systems that are experiencing the hang issue.
the This update is re-released in April 2020 and will not be superseded by newer updates to keep future availability.
Important
This update is categorized as an 'update' due to its reboot requirement and will only be offered with a Windows Update
Security intelligence update version: 1.307.13.0
Released: December 7, 2019
Platform: 4.18.1911.3
Engine: 1.1.17000.7
Support phase: No support
Released: December 7, 2019
Platform: 4.18.1911.3
Engine: 1.1.17000.7
Support phase: No support
What's new
- Fixed MpCmdRun tracing level
- Fixed WDFilter version info
- Improve notifications (PUA)
- add MRT logs to support files
Known Issues
When this update is installed, the device needs the jump package 4.10.2001.10 to be able to update to the latest platform version.
Microsoft Defender Antivirus platform support
As stated above, platform and engine updates are provided on a monthly cadence.Customers must stay current with the latest platform update to be fully supported. Our support structure is now dynamic, evolving into two phases depending on the availability of the latest platform version:
- Security and Critical Updates servicing phase - When running the latest platform version, you will be eligible to receive both Security and Critical updates to the anti-malware platform.
- Technical Support (Only) phase - After a new platform version is released, support for older versions (N-2) will reduce to technical support only. Platform versions older than N-2 will no longer be supported.*
* Technical support will continue to be provided for upgrades from the Windows 10 release version (see Platform version included with Windows 10 releases) to the latest platform version.
During the technical support (only) phase, commercially reasonable support incidents will be provided through Microsoft Customer Service & Support and Microsoft’s managed support offerings (such as Premier Support). If a support incident requires escalation to development for further guidance, requires a non-security update, or requires a security update, customers will be asked to upgrade to the latest platform version or an intermediate update (*).
Platform version included with Windows 10 releases
The below table provides the Microsoft Defender Antivirus platform and engine versions that are shipped with the latest Windows 10 releases:
Windows 10 release | Platform version | Engine version | Support phase |
---|---|---|---|
1909 (19H2) | 4.18.1902.5 | 1.1.16700.3 | Technical upgrade Support (Only) |
1903 (19H1) | 4.18.1902.5 | 1.1.15600.4 | Technical upgrade Support (Only) |
1809 (RS5) | 4.18.1807.18075 | 1.1.15000.2 | Technical upgrade Support (Only) |
1803 (RS4) | 4.13.17134.1 | 1.1.14600.4 | Technical upgrade Support (Only) |
1709 (RS3) | 4.12.16299.15 | 1.1.14104.0 | Technical upgrade Support (Only) |
1703 (RS2) | 4.11.15603.2 | 1.1.13504.0 | Technical upgrade Support (Only) |
1607 (RS1) | 4.10.14393.3683 | 1.1.12805.0 | Technical upgrade Support (Only) |
Windows 10 release info: Windows lifecycle fact sheet.
In this section
Article | Description |
---|---|
Manage how protection updates are downloaded and applied | Protection updates can be delivered through a number of sources. |
Manage when protection updates should be downloaded and applied | You can schedule when protection updates should be downloaded. |
Manage updates for endpoints that are out of date | If an endpoint misses an update or scheduled scan, you can force an update or scan at the next log on. |
Manage event-based forced updates | You can set protection updates to be downloaded at startup or after certain cloud-delivered protection events. |
Manage updates for mobile devices and virtual machines (VMs) | You can specify settings, such as whether updates should occur on battery power, that are especially useful for mobile devices and virtual machines. |
Why it matters: Are you using the free version of CCleaner? If so, you’ll probably notice that Windows Defender is now flagging the junk file remover as a Potentially Unwanted Application (PUA) after Microsoft recently updated its antivirus program.
CCleaner optimizes a system by removing unused and temporary files, thereby making it faster and freeing up storage space. It also features a registry scanner for invalid references. You can download CCleaner here and see similar alternatives.
Back in 2017, Piriform, the UK-based firm behind CCleaner, was acquired by Avast for $1.3 billion, which has led to other programs being bundled in with the app, including Avast Free Antivirus, AVG Antivirus Free, Google Chrome and Google Toolbar.
It seems Microsoft has taken exception to the bundling of these programs. In a new threat entry, the Redmond firm has classified CCleaner as a PUA. “While the bundled applications themselves are legitimate, bundling of software, especially products from other providers, can result in unexpected software activity that can negatively impact user experiences,” states the notice.
“While the CCleaner installers do provide an option to opt out, some users can easily inadvertently install these bundled applications.”
Microsoft previously stated that it does not support registry cleaners, advising that such programs should not be used.
In Microsoft’s entry on how it identifies malware and potentially unwanted applications, it notes that PUAs are not malware but software must not make misleading claims about a device’s health, files, or registry entries.
Only the free version of CCleaner is being identified as a PUA as it contains the bundled software. Piriform told BleepingComputer that it is in talks with Microsoft to stop its program being flagged by Defender, which is also flagging other Piriform software such as Recuva.