Syntax pattern from Microsoft Learn; replace placeholders and choose only one documented alternative before use.
setx [/s <computer> [/u [<domain>\]<user name> [/p [<password>]]]] <variable> <value> [/m]setx command
Creates or modifies environment variables in the user or system environment, without requiring programming or scripting. This guide lists the documented syntax and parameters for setx; check Microsoft Learn for version, role and execution-context requirements.
Documented syntax
setx [/s <computer> [/u [<domain>\]<user name> [/p [<password>]]]] <variable> <value> [/m]
setx [/s <computer> [/u [<domain>\]<user name> [/p [<password>]]]] <variable>] /k <path> [/m]
setx [/s <computer> [/u [<domain>\]<user name> [/p [<password>]]]] /f <filename> {[<variable>] {/a <X>,<Y> | /r <X>,<Y> <String>} [/m] | /x} [/d <delimiters>]The linked Microsoft Learn article is the upstream authority. Availability may depend on Windows release, role, optional feature or interactive tool context.
Syntax pattern
Parameters, options and clauses
| Option / clause | Description |
|---|---|
/s | Microsoft documents this switch; use the linked reference for accepted values, effects and version limits. |
<computer> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
/u | Microsoft documents this switch; use the linked reference for accepted values, effects and version limits. |
<domain> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
/p | Microsoft documents this switch; use the linked reference for accepted values, effects and version limits. |
<password> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
<variable> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
<value> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
/m | Microsoft documents this switch; use the linked reference for accepted values, effects and version limits. |
/k | Microsoft documents this switch; use the linked reference for accepted values, effects and version limits. |
<path> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
/f | Microsoft documents this switch; use the linked reference for accepted values, effects and version limits. |
<filename> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
/a | Microsoft documents this switch; use the linked reference for accepted values, effects and version limits. |
<X> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
<Y> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
/r | Microsoft documents this switch; use the linked reference for accepted values, effects and version limits. |
<String> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
/x | Microsoft documents this switch; use the linked reference for accepted values, effects and version limits. |
/d | Microsoft documents this switch; use the linked reference for accepted values, effects and version limits. |
<delimiters> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
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.