| Path | Purpose | |------|---------| | HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall | 64-bit apps uninstall info | | HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall | 32-bit apps on 64-bit Windows | | HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall | User-installed apps (e.g., Store apps) | Control update behavior.

| Path | Key Settings | |------|---------------| | HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System | Enable/disable UAC, Ctrl+Alt+Del requirements | | HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer | Hide drives, disable registry tools | | HKLM\SECURITY | Only accessible by SYSTEM – local security policies | | HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer | User-level restrictions | Device installation and monitoring.

| Path | Purpose | |------|---------| | HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters | Global TCP/IP settings (MTU, TTL, DNS) | | HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\GUID | Per-network adapter settings | | HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings | Proxy, auto-config, security zones | | HKLM\SOFTWARE\Policies\Microsoft\Windows\Network Connections | Lock down network settings | Audit, UAC, and login settings.

| Path | Key Settings | |------|---------------| | HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced | Show hidden files, file extensions, etc. | | HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\CabinetState | Full path in title bar | | HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Icons | Override system icons | | HKCU\Control Panel\Desktop | Wallpaper, menu speed, mouse settings | Manage TCP/IP, IE/Edge, and network adapters.