Note: After seeing lots of comments about setting variable d'environnements without administrator rights in Windows 10, Je pense J'ai found a way. I was not administrator and could use PowerShell.
Vous pouvez list all variable d'environnements with: Get-ChildItem Env:.
To get the value of a specific variable: $Env:PATH, where PATH is the name of the variable.
To set a variable: [Environment]::SetEnvironmentVariable("PATH", "C:\TestPath", "User"), the first parameter is the name of the variable, the second is the value, the third is the level of.
There are different ways to work with variable d'environnements and certain quirks with them in PowerShell so consult the link for details.
Old method (no longer available in newer Windows 10 updates, use PowerShell or see other answers)
Go into Settings and cliquez sur System.
Then à gauche side click About et sélectionnez System info en bas.
In the new Panneau de configuration window that opens, click Advanced system settings à gauche.
Now in the new window that comes up, select Variables d'environnement... en bas.
