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Join , subscribers and get a daily digest of news, geek trivia, and our feature articles. By submitting your email, you agree to the Terms of Use and Privacy Policy. It also lets you customize where Windows stores certain files. Find out how to edit them here. Environment variables can be used to point to or set important directories, like the location of the Windows Temp folder , or they can they relay important information about your PC, like the version of Windows it is running or the number of processor cores it has available.
Environment variables be read by any program or script that runs on your computer. Environment variables can be defined for individual user accounts, or on a system-wide basis. One environment variable of note is the Path variable. Path defines what folders are checked for executables when a command is run in a terminal or a script.
Take Notepad as an example — you can type notepad into Command Prompt and it will launch immediately. The error occurs because the Notepad executable is in a folder defined in the Path, but the Chrome executable is not. There are some minor differences between the user interfaces of Windows 10 and Windows 11, but the basic process of editing environment variables is the same. Adding an environment variable works the exact same way, except you must specify the variable name and value. The variable value can take multiple values if you want, but the values must be separated by semicolons.
Some environment variables, like Path, look a little different, though they function in exactly the same way. The Path variable is given as a list from which you can add, edit, or delete entries. We select and review products independently. When you purchase through our links we may earn a commission. Learn more. Windows ». What Is svchost. Best Ultrawide Monitors.
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