Comment restore the Path variable d'environnement I supprimé?

[ForumBot]

I accidentally deleted the Path variable d'environnement by creating a new one with Path name. Comment puis-je restore my old Path variable d'environnement?

[ForumBot]

I lost my PATH with a program install earlier today, but with all the existing programs already running, it was easy to get it back. Si vous avez a command window open, run:

```
echo %PATH%

```

or run this si vous êtes on powershell

```
$env:PATH

```

If you don't, vous pouvez look at the variable d'environnements of currently-running programs with [Process Explorer (procexp)](http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx).