Respondus Lockdown Browser has the following system requirements. https://support.respondus.com/hc/en-us/articles/4409607170459-What-are-the-computer-requirements-for-installations-of-Respondus-LockDown-Browser
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Windows 11 or 10*
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* Includes x86 32 and 64 bit processors, ARM 64 bit processors using x86 emulation including CoPilot+PC devices.
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* Windows 10/11 "S mode" is not a compatible operating system, nor can LockDown Browser be obtained via the Windows App Store. At present, support for
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* Windows 10/11 "S Mode" isn’t on the roadmap for LockDown Browser.
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* Windows 10/11 "SE" is currently not a compatible operating system for LockDown Browser.
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macOS 10.15 to 14+
The browser is based on Google Chrome for both versions.