IE should be reset to default security levels, and the exam should be tried again. If you experience errors while taking a test through the LockDown Browser, check your security settings in IE and the overall functionality of IE. Safari must be in proper working order.200MB permanent space on the hard drive.If IE has some sort of infection or not working properly, the LockDown Browser could error.Anything higher and JavaScript cannot be ran and cookies won’t be sent or received causing login and test taking errors.IE has to be set to default security levels.* Includes x86 32 and 64bit processors and ARM 64bit processors using x86 emulation. Windows 10S is not a compatible operating system. Shares properties with Safari if on a Mac.