System command

reg command

Performs operations on registry subkey information and values in registry entries. This guide lists the documented syntax and parameters for reg; check Microsoft Learn for version, role and execution-context requirements.

Availability: Microsoft Learn command reference spanning Windows client and Windows Server releases; some entries are legacy, role-specific, optional-feature or interactive subcommands.中文

Documented syntax

reg add
reg compare
reg copy
reg delete
reg export
reg import
reg load
reg query
reg restore
reg save
reg unload

The linked Microsoft Learn article is the upstream authority. Availability may depend on Windows release, role, optional feature or interactive tool context.

Syntax pattern

Syntax pattern from Microsoft Learn; replace placeholders and choose only one documented alternative before use.

reg add
Safety note

Review a command and its target before running it. Commands that alter files, services, accounts, disks, permissions or databases may be difficult to reverse. Test in a safe environment and keep backups.

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