A full memory dump is a complete snapshot of a computer's memory at a specific moment, capturing all the data stored in RAM. This includes the operating system, running applications, and any active processes. Full memory dumps are often used for troubleshooting and debugging, as they provide detailed information about the system's state when an error or crash occurs. When a system crashes, a full memory dump can be created automatically, allowing developers and IT professionals to analyze the data later. Tools like Windows Debugger or WinDbg can help interpret the information in the dump, making it easier to identify the root cause of issues.