Emacs in Microsoft Windows FAQ

Where to download emacs for Windows?

• Download Emacs for Windows/Mac

Where is emacs init file on Microsoft Windows?

• Emacs init file location in Microsoft Windows

How to list environment variables?

1. Launch PowerShell: press the ❖ Window key, then type powershell.
2. in PowerShell prompt, type dir env:

[see Windows Environment Variable Tutorial]

Create a Environment Variable HOME

I highly recommend you create a environment variable named HOME. Because the HOME directory is heavily used by emacs from the unix convention.

Set the value of environment variable HOME to the same value as the environment variable HOMEPATH.

In PowerShell, run this:

[Environment]::SetEnvironmentVariable("home", $env:homepath, "User")

[see PowerShell: Set Environment Variable]

Changes to environment variable in registry are not reflected in current PowerShell session. Type exit to exit PowerShell. Start a new process.

Create a Emacs Init File

I recommend you create a emacs init file at

$HOME/.emacs.d/init.el

How to find out if emacs init is loaded?

put this in your Emacs Init File:

(set-background-color "grey")

If emacs starts with new background color, then it's loaded.

How to Start Emacs by Command Line?

Launch PowerShell , then type for example: ~\Downloads\emacs-27.1-x86_64\bin\runemacs

How to start emacs in graphical user interface?

Go to emacs folder, then in the “bin” dir, then click on file runemacs.exe

How to start emacs with default dir at home dir?

Create a Windows shortcut, then set the “Start in” field.

To create a file shortcut:

1. Hold Alt then drag that runemacs.exe icon to desktop.
2. In the newly created alias icon, right click to open file properties. Then, in the “Start in” field, enter your home directory.
3. In the “Target” field, you can add emacs command line options. For example: %home%\apps\emacs-24.1\bin\runemacs.exe -q --load=%home%\ErgoEmacs_dev\init.el --load=%home%\.emacs. Here, i suppress loading init files by -q, but load ErgoEmacs init files, then load my personal init files.

How to disable Ctrl+Space on Windows

• Disable Windows Control+Space Alt+Space Shortcuts

How to disable Ctrl+Alt+s in Microsoft Windows?

• Disable Ctrl+Alt+S Shortcut for HP Support Info

How to run PowerShell or Bash in emacs?

• Emacs Init: Change Default Shell (PowerShell)

Setting Environment Variable for Emacs Only

• Emacs: Environment Variables in Emacs

Install Linux Tools

Some of emacs's features require unix utilities. The essential ones are these:

• ispell → needed by emacs Alt+x ispell-word, flyspell-buffer and others.
• diff → needed by emacs Alt+x diff
• grep → needed by emacs Alt+x grep and others.
• find → needed by emacs Alt+x find-dired.

There are several ways to get linux tools for Microsoft Windows.

I recomment one of the following:

• Install chocolatey package manager. This lets you install many unix command line tools easily. See Xah Windows Setup
• Install Windows Subsystem for Linux (WSL)
• For old school, try Cygwin Installing Cygwin Tutorial

Alternatively, i recommend not rely on unix {find, grep, diff}, because they are 30 years old technology.

You can easily use PowerShell for unix find/grep/diff. [see PowerShell Tutorial]

For find/replace/grep needs within emacs, try Emacs: Xah Find Replace (xah-find.el)