Avast Secure Browser
AvastSecureBrowser.exe is the primary executable for Avast Secure Browser, a Chromium-based web browser packaged by Avast. It starts when you launch the browser and runs user interface code, tab processes, and security features. If Avast Secure Browser is installed, this file is expected to be present and active.
This executable loads the browser UI, spawns sandboxed tab renderers, and coordinates built-in protections such as anti-tracking, password management, and Avast shields. It communicates with update and security services while isolating tabs to reduce cross-site risks.
Avast Secure Browser is a legitimate product from Avast, and AvastSecureBrowser.exe is its core process. When installed from Avast's official setup, it performs browser rendering, UI handling, and integration with Avast security features. If Avast Secure Browser is present on your system and installed from a trusted source, this executable is not a virus or malware by design.
While Avast Secure Browser is legitimate, AvastSecureBrowser.exe can be repurposed by malware if it is installed via unofficial bundles or after system compromise. Always verify the binary's source and digital signature, and run a malware scan if you did not install Avast Secure Browser yourself or notice unexpected behavior.
Red Flags: If AvastSecureBrowser.exe appears in an unusual path (for example, a temporary download folder) or has a surprising file size, or you did not install Avast Secure Browser yourself, treat it as suspicious and validate with antivirus tools.
Reasons it's running:
Yes, AvastSecureBrowser.exe is the legitimate executable for Avast Secure Browser when installed from Avast. If you did not install it yourself or suspect tampering, verify the digital signature and run a malware scan.
Typically in C:\\Program Files\\AVAST Software\\Avast Secure Browser\\Application or C:\\Program Files (x86)\\AVAST Software\\Avast Secure Browser\\Application.
Yes. You can prevent it from starting with Windows and disable startup entries or close it normally; however, fully removing it requires uninstalling the browser.
Active browsing, extensions, and security features cause normal resource use; if excessive, update, disable problematic extensions, or reset settings.
Go to Settings > Apps > Avast Secure Browser and choose Uninstall, or use Windows Apps & Features to remove Avast Secure Browser along with Avast components.
Related files include AvastSecureBrowser.exe in the Application folder, as well as supporting DLLs and service components under AVAST Software directories.