Here are the requirements:
Operating Systems
Windows: 11 and 10*
* Includes x86 32 and 64 bit processors, ARM 64 bit processors using x86 emulation including CoPilot+PC devices.
* 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 Windows 10/11 "S Mode" isn’t on the roadmap for LockDown Browser.
* Windows 10/11 "SE" is currently not a compatible operating system for LockDown Browser.
Mac: macOS 10.15 to 15.0+.
ChromeOS: LockDown Browser for Chromebook minimally requires the version of ChromeOS that Google makes available via their Long Term Support (LTS) channel. For more information, visit: https://chromereleases.googleblog.com/search/label/LTS
Respondus recommends keeping your Chromebook updated to the most recent version that is available via Google’s ChromeOS “Stable” channel: https://chromereleases.googleblog.com/search/label/stable
iPadOS: 12.0+ (iPad only). Must have a compatible LMS integration. The LockDown Browser iPad app is not compatible with Sakai LMS servers. All Sakai users will need to use a computer with a compatible operating system.
LockDown Browser and Respondus Monitor may continue to run in older operating systems that have reached “end-of-life” but students may encounter unexpected results.
Memory
Windows: 2 GB RAM (A minimum 4gb of available RAM is necessary when using LockDown Browser to take an exam that also uses a webcam.)
Mac: 2 GB RAM (A minimum 4gb of available RAM is necessary when using LockDown Browser to take an exam that also uses a webcam.)
Hard Disk Space
Windows: 200 MB of free hard disk space
Mac: 200 MB of free hard disk space