build 26.11.11219
What is New
Antivirus and Protection
Hidden malware in game files: Avast now looks inside Ren’Py game archives and their script files. Attackers use these files to hide the RenEngine malware loader. Avast can now find it.
Cyber Capture message: The Cyber Capture notification now says a file was also sent to our Threat Labs only when that really happened.
Scan engine updates: Avast can now check the digital signature of Remote Desktop (.rdp) files. Large files need less memory when Avast verifies them. Scan exclusions are matched faster. Folder submissions now pick the right archive format.
Protection against local attacks: Other programs on your PC can no longer overload the Avast scan engine until it runs out of memory.
SafeZone browser: SafeZone now works for programs that run with limited trust. Avast used to reject them too early.
AI Agent Protection
Faster access checks: Agentic Safe Zone now checks your temporary “allow” decisions earlier. Access you already approved is granted faster.
Late answers still count: If an access prompt times out, your answer is still applied afterwards.
Network
Secure DNS network memory: Secure DNS now recognises the same network every time. It no longer treats a known network as new and repeats its checks.
Cleanup
Delete locked files after restart: Files that Cleanup cannot delete right away, for example because they are in use, are now removed after your next restart. The app can also ask you to restart your PC.
AI Tools cleaning: Custom Clean has a new AI Tools category. It lists cleaning rules for AI apps such as Cursor. When you clean several rules for the same running AI app, the “Close these running programs?” box shows that app once.
Faster start: The main window opens faster. If you start the app a second time, it brings up the open window instead of a second one.
Software Remover: You can now cancel a software scan while it runs.
Steadier browser cleaning: Cleaning browser bookmarks and history no longer crashes the CCleaner service.
Installer and Updates
Uninstall without internet: Uninstall now finishes even when setup information for an add-on component is missing and cannot be downloaded. Before, the whole uninstall stopped.
CCleaner setup check: The CCleaner installer now checks that the Microsoft WebView2 component is really on your PC. This stops the “0x80070002” start-up error.
Cleaner updates: Updates remove old, unused interface files. This frees disk space.
Safer setup files: Setup now refuses to follow disguised file links when it saves its report files. This closes a way for other users on your PC to misuse it.
Clearer setup errors: Setup error reports now show the real cause, such as a full disk. A crash after uninstall no longer causes confusing errors either.
What Was Fixed
Antivirus and Protection
Virus definitions after System Restore: Avast now checks that the virus definitions folder is complete after a Windows System Restore. Before, a damaged folder could stop the scan service from starting.
Malicious registry entries: Avast now removes malicious multi-value registry entries it finds. The removal used to fail without any message.
Memory safety: We fixed four memory errors in Avast drivers and the scan engine. Specially crafted text or files could trigger them. We also fixed damaged entries in sandbox logs. A failed driver start-up step is no longer reported as a success.
File Reputation setting: A change to the File Reputation setting now applies at once. Before, it could take over a minute.
Smart Scan crash: Avast no longer crashes when you stop Smart Scan and start it again right away.
Shutdown hang: The Avast service no longer freezes when it shuts down, for example during a reinstall.
Blue screens when drivers stop: We fixed three blue-screen crashes that could happen when Avast drivers stopped or were updated. One affected 32-bit Windows 7 and 8.1.
Anti-rootkit on new Windows 11: Anti-rootkit now collects the information it needs on the newest Windows 11 build.
Fewer false alerts about Chrome: If the Avast service restarts while it repairs its engine, Avast now saves the details at once. This helps us find the cause of rare false alerts about Chrome. Avast also notes recent System Restore events.
Script Shield updates: We updated the data that Script Shield uses to watch scripts.
AI Agent Protection
Blocked folders and network paths: Agentic Safe Zone now blocks access to a protected folder when an AI agent reaches it by a network-style path such as \\localhost\C$. Before, this path got around the block.
Business Management
Firewall rules kept: Firewall rules you add on a PC stay in place when your console has rule management turned off. Before, they disappeared after a few minutes.
UI password: The “General program access” password option from your console works again in Avast 26.8 and newer. The password prompt now appears.
Privacy
Data breach monitoring crash: We fixed a crash that could happen while Avast read browser bookmarks.
AntiTrack log errors: AntiTrack no longer fills its log with errors when it closes browser windows.
Licensing
Modular license dates: The expiry date with grace period no longer overwrites the normal expiry date. A replaced subscription keeps its correct billing type.
Subscription buttons: For partner-managed subscriptions, “Resubscribe” and “See subscription options” now open the purchase page in your browser. They used to ask for a PIN.
Driver Updater
Cancelled updates: A cancelled update is no longer counted as an updated driver.
Automatic revert: When a driver update fails its check, automatic revert now restores your previous driver. Before, it installed the failed update again.
Restart needed state: Driver Updater now notices when you update a driver outside the app and Windows asks for a restart. It no longer shows the old update offer. One device waiting for a restart no longer blocks other actions.
Full disk: A full disk no longer makes Driver Updater ignore a good driver for good. You can free space and try again. Driver Updater also checks the space it needs before it downloads.
Cleanup
Release notes after update: Release notes now appear after an automatic update. You no longer need to restart the service.
Startup Manager names: Startup Manager now shows the correct program names. Before, some entries showed an unrelated name, for example Java’s updater under an audio plug-in.
Close browsers box: In Health Check, clicking a browser name in the “Close browsers” box now ticks its checkbox.
Safer saved data: CCleaner no longer saves data through disguised file links. This closes a way for other users on your PC to write to protected files.
Home screen cards: A card you dismissed no longer comes back. We also fixed a rare crash when the card list loads.
Software Updater
Apple downloads: Downloads for Apple software, such as iTunes, now work.
Software Updater crash: We fixed a crash that could happen when the updater closed while tasks were running.
Installer and Updates
Optional components: Components that your policy excludes are no longer installed with Avast or Norton. Add-ons installed later now use the matching beta or internal channel.
Failed add-on install: If an add-on fails to install, file changes that wait for a restart are no longer undone. Before, this could leave the product broken after a restart.
Uninstall survey: On Windows 7, the “Something else” screen in the AVG uninstall survey shows its text box at once. Submitting the survey no longer causes an error.
Move from AntiTrack to Avast: Moving from stand-alone AntiTrack to Avast no longer shows a Microsoft Edge error. Updating Avast also installs the AntiTrack module when stand-alone AntiTrack is present.
AntiTrack uninstall crash: The Avast window no longer crashes when you uninstall AntiTrack.
Move from older versions: Moving from the old setup to the new one keeps your web reputation setting. It also no longer shows backup file errors for AVG. Moving from Avast One Essential to Avast Free no longer logs a file-access error.
Setup timeouts and errors: Setup waits longer for components to stop. It no longer fills the log with errors when several setups run at once. It no longer crashes when many reports are waiting to be sent.
Business installer: The Avast Business installer shows the correct welcome page. It no longer mentions Scam Guardian, which Business does not include.
Avast Uninstall Tool: The Avast Uninstall Tool now removes all leftover files and folders.
Languages
Translations: Text in the Avast installer and CCleaner 7.12 was updated in 43 languages.
Look and Feel
Design updates: The colours, spacing and artwork in the app were updated to match our latest design system.
Maintenance
Internal tools: We updated build and security-scanning tools and removed old build files. This does not change how the product works.
Known Issues
AI Agent Protection
Blocked folders may still be readable [Critical]: In Agentic Safe Zone, an AI agent such as Claude can still read the contents of a folder you blocked. For now, do not rely on a blocked folder to keep sensitive files away from an AI agent.
Settings
Settings saved for the wrong user [Critical]: Some settings that belong to the signed-in user can be saved under the system service account. These settings may not apply to your Windows account.
App Interface
Avast window crash [Critical]: The Avast window can close unexpectedly because of a crash.
Web Shield
Slower HTTP/3 checks: Web Shield takes longer to check HTTP/3 (QUIC) connections than normal secure web connections. Some sites can load more slowly.
Privacy
Privacy Monitor results: Privacy Monitor can show old scan results and report success when it cannot save the guest scan information.
Firewall
Slow firewall rule changes: When many app rules change at once, the Firewall applies them one at a time. This can take longer than it should. A fix is in review.
build 26.11.11219
## 更新内容
### 杀毒与防护
- **游戏文件中隐藏的恶意软件**：Avast 现在可以检查 Ren'Py 游戏压缩包及其脚本文件的内部。攻击者会利用这些文件隐藏 RenEngine 恶意软件加载器，Avast 现在能够发现它。
- **Cyber Capture 提示**：Cyber Capture 通知现在只会在文件确实被发送到 Threat Labs 时才显示该信息。
- **扫描引擎更新**：Avast 现在可以验证远程桌面（.rdp）文件的数字签名；验证大型文件时内存占用更低；扫描排除项的匹配速度更快；提交文件夹时现在会选择正确的压缩格式。
- **本地攻击防护**：电脑上的其他程序将无法再通过耗尽内存的方式压垮 Avast 扫描引擎。
- **SafeZone 浏览器**：SafeZone 现在支持以受限信任级别运行的程序，此前这类程序会被过早拒绝。
### AI 智能体防护
- **更快的访问检查**：Agentic Safe Zone 现在会更早检查你的临时"允许"决定，已批准的访问会更快放行。
- **超时后的回答依然生效**：如果访问提示超时，你之后做出的回答仍会被应用。
### 网络
- **Secure DNS 网络记忆**：Secure DNS 现在每次都能识别出同一网络，不再把已知网络当作新网络而重复检查。
###Cleanup
- **重启后删除锁定文件**：清理时无法立即删除的文件（例如正在被使用），现在会在下次重启后删除。应用也可以提示你重启电脑。
- **AI 工具清理**：自定义清理新增"AI 工具"分类，列出了 Cursor 等 AI 应用的清理规则。当你对同一个正在运行的 AI 应用清理多条规则时，"是否关闭这些正在运行的程序？"对话框只会显示该应用一次。
- **启动更快**：主窗口打开速度更快；再次启动应用时会唤起已打开的窗口，而不是新开一个。
- **软件卸载（Software Remover）**：现在可以在软件扫描进行中取消扫描。
- **更稳定的浏览器清理**：清理浏览器书签和历史记录不再导致 CCleaner 服务崩溃。
### 安装程序与更新
- **无网络也能卸载**：即使某个附加组件的安装信息缺失且无法下载，卸载也能完成。此前整个卸载过程会中断。
- **CCleaner 安装检查**：CCleaner 安装程序现在会检查 Microsoft WebView2 组件是否真实存在于你的电脑上，从而避免"0x80070002"启动错误。
- **更干净的更新**：更新时会移除旧的、不再使用的界面文件，释放磁盘空间。
- **更安全的安装文件**：安装程序在保存报告文件时不再跟随伪装的文件链接，堵住了电脑上其他用户借此滥用的途径。
- **更清晰的安装错误**：安装错误报告现在会显示真实原因（例如磁盘已满）；卸载后的崩溃也不再引发令人困惑的错误。
## 修复内容
### 杀毒与防护
- **系统还原后的病毒定义**：Avast 现在会在 Windows 系统还原后检查病毒定义文件夹是否完整。此前文件夹损坏可能导致扫描服务无法启动。
- **恶意注册表项**：Avast 现在能移除发现的恶意多值注册表项。此前移除会静默失败，没有任何提示。
- **内存安全**：修复了 Avast 驱动和扫描引擎中的四个内存错误，特制的文本或文件可能触发这些错误；同时修复了沙盒日志中损坏的条目；驱动启动步骤失败不再被误报为成功。
- **文件信誉设置**：文件信誉（File Reputation）设置的更改现在会立即生效。此前可能需要一分多钟。
- **智能扫描崩溃**：停止智能扫描后立即重新开始，Avast 不再崩溃。
- **关机卡死**：Avast 服务在关闭时（例如重装期间）不再卡死。
- **驱动停止时的蓝屏**：修复了 Avast 驱动停止或更新时可能发生的三个蓝屏崩溃，其中一个影响 32 位 Windows 7 和 8.1。
- **新版 Windows 11 上的反 Rootkit**：反 Rootkit 现在能在最新的 Windows 11 版本上正常收集所需信息。
- **减少 Chrome 相关误报**：如果 Avast 服务在修复引擎期间重启，现在会立即保存相关细节，帮助我们找出针对 Chrome 的罕见误报原因；Avast 也会记录最近的系统还原事件。
- **脚本防护更新**：更新了脚本防护（Script Shield）用于监控脚本的数据。
### AI 智能体防护
- **被阻止的文件夹与网络路径**：当 AI 智能体通过 \\localhost\C$ 之类的网络路径访问受保护文件夹时，Agentic Safe Zone 现在会正确阻止。此前该路径可以绕过封锁。
### 企业管理
- **防火墙规则保留**：当控制台关闭规则管理时，你在电脑上添加的防火墙规则会保留。此前它们会在几分钟后消失。
- **界面密码**：控制台中的"常规程序访问"密码选项在 Avast 26.8 及更新版本上恢复可用，密码提示框现在会正常出现。
### 隐私
- **数据泄露监控崩溃**：修复了 Avast 读取浏览器书签时可能发生的崩溃。
- **AntiTrack 日志错误**：AntiTrack 关闭浏览器窗口时不再在日志中刷入大量错误。
### 授权许可
- **模块化许可日期**：带宽限期的到期日期不再覆盖正常的到期日期；被替换的订阅会保留正确的计费类型。
- **订阅按钮**：对于合作伙伴管理的订阅，"重新订阅"和"查看订阅选项"现在会在浏览器中打开购买页面，此前会要求输入 PIN 码。
### Driver Updater
- **已取消的更新**：被取消的更新不再被计为已更新的驱动。
- **自动回退**：驱动更新未通过检查时，自动回退现在会恢复你之前的驱动。此前它会再次安装失败的更新。
- **需要重启的状态**：当你在应用外更新驱动且 Windows 要求重启时，驱动更新现在能感知到这一点，不再显示旧的更新提示；一个等待重启的设备也不再阻塞其他操作。
- **磁盘已满**：磁盘已满不再导致驱动更新永久忽略一个好驱动，释放空间后可以重试；驱动更新现在还会在下载前检查所需空间。
### Cleanup
- **更新后的更新日志**：自动更新后现在会显示更新日志，不再需要重启服务。
- **启动项管理器名称**：启动项管理器现在显示正确的程序名称。此前某些条目会显示无关名称，例如把 Java 更新程序显示成某个音频插件。
- **关闭浏览器对话框**：在健康检查（Health Check）中，点击"关闭浏览器"对话框里的浏览器名称现在会勾选对应复选框。
- **更安全的已存数据**：CCleaner 不再通过伪装的文件链接保存数据，堵住了电脑上其他用户借此写入受保护文件的途径。
- **主页卡片**：被你关闭的卡片不再重新出现；同时修复了卡片列表加载时的一个罕见崩溃。
### Software Updater
- **Apple 软件下载**：iTunes 等 Apple 软件的下载现在可以正常工作。
- **软件更新崩溃**：修复了更新器在有任务运行时关闭可能发生的崩溃。
### 安装程序与更新
- **可选组件**：被策略排除的组件不再随 Avast 或 Norton 一起安装；稍后安装的附加组件现在会使用匹配的测试版或内部渠道。
- **附加组件安装失败**：如果附加组件安装失败，等待重启的文件变更不再被撤销。此前这可能导致重启后产品损坏。
- **卸载调查问卷**：在 Windows 7 上，AVG 卸载调查中的"其他原因"页面会立即显示文本框，提交问卷也不再报错。
- **从 AntiTrack 迁移到 Avast**：从独立版 AntiTrack 迁移到 Avast 不再显示 Microsoft Edge 错误；当存在独立版 AntiTrack 时，更新 Avast 也会安装 AntiTrack 模块。
- **AntiTrack 卸载崩溃**：卸载 AntiTrack 时 Avast 窗口不再崩溃。
- **从旧版本迁移**：从旧安装程序迁移到新版本会保留你的网页信誉设置；AVG 也不再显示备份文件错误；从 Avast One Essential 迁移到 Avast Free 不再记录文件访问错误。
- **安装超时与错误**：安装程序等待组件停止的时间更长；多个安装程序同时运行时不再在日志中刷入错误；有大量报告等待发送时不再崩溃。
- **企业版安装程序**：Avast Business 安装程序显示正确的欢迎页面，不再提及 Business 版不包含的 Scam Guardian。
- **Avast 卸载工具**：Avast 卸载工具现在会清除所有残留文件和文件夹。
### 语言
- **翻译**：Avast 安装程序和 CCleaner 7.12 中的文本已在 43 种语言中更新。
### 外观
- **设计更新**：应用内的颜色、间距和图形素材已更新，与我们最新的设计系统保持一致。
### 维护
- **内部工具**：更新了构建和安全扫描工具，移除了旧的构建文件。这不影响产品的实际功能。
## 已知问题
### AI 智能体防护
- **被阻止的文件夹仍可能被读取【严重】**：在 Agentic Safe Zone 中，Claude 等 AI 智能体仍然可以读取你阻止的文件夹内容。目前请勿依赖"阻止文件夹"来让敏感文件避开 AI 智能体。
### 设置
- **设置保存到了错误的用户下【严重】**：部分属于已登录用户的设置可能被保存到系统服务账户下，这些设置可能对你的 Windows 账户不生效。
### 应用界面
- **Avast 窗口崩溃【严重】**：Avast 窗口可能因崩溃而意外关闭。
### 网页防护
- **HTTP/3 检查较慢**：网页防护（Web Shield）检查 HTTP/3（QUIC）连接比检查普通加密网页连接耗时更长，部分网站加载可能变慢。
### 隐私
- **隐私监控结果**：隐私监控（Privacy Monitor）可能显示过期的扫描结果，并且在无法保存访客扫描信息时误报成功。
### 防火墙
- **防火墙规则变更缓慢**：当大量应用规则同时变更时，防火墙会逐条应用，耗时可能超出预期。修复正在审核中。
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