This guide walks through how the Windows Registry works and how to manage it safely without breaking your system. It starts with the basics—keys, values, and why the registry is central to everything Windows does—then moves into hands-on tasks like editing, creating, deleting, and searching keys using tools like Regedit and PowerShell. It also covers common problems, from leftover entries to malware changes, and shows how to fix them using System Restore, SFC, DISM, and cleanup steps. The last section focuses on backups and recovery, stressing that even small mistakes can cause major issues, so regular backups and careful changes are essential.

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