When a PC is slow, hangs, or feels laggy, Windows can record a detailed performance trace while the problem occurs. A performance trace is a separate binary file (.etl) that captures fine-grained timing data about CPU, disk, memory, waits, and similar activity. Microsoft's early-preview tools ETW MCP and WPA MCP let an AI assistant ask questions about that .etl file in plain language, so you spend less time hunting through unfamiliar charts and tables.
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