diff --git a/README.md b/README.md
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+++ b/README.md
@@ -1,15 +1,28 @@
 # Import-TeamsUsers
 A Powershell script that imports users from a CSV into a Microsoft Teams team.
 
-# Setup
+# Setting up your device
+This script runs via PowerShell. If you're on Windows, you'll already have this. If not, please download it from the [releases page](https://github.com/PowerShell/PowerShell/releases). Once you've got PowerShell:
+1. Open PowerShell.
+2. Allow remote scripts to execute by running `Set-ExecutionPolicy RemoteSigned`. If you don't do this, the script won't run.
+3. Install the Microsoft Teams module. To do this, run `Install-Module -Name MicrosoftTeams`. Accept any prompts that you are given.
+
+# Gathering information
 You'll need to do a few things before you can run the script:
-1. Have a CSV file. This needs to be in the format `email,role`. You can copy the template if required.
-2. Install the module. Run `Install-Module -Name MicrosoftTeams` in your Powershell terminal.
-3. Import the module. Run `Import-Module -Name MicrosoftTeams` in your Powershell terminal.
-4. Authenticate to the API. Run `Connect-MicrosoftTeams` in your Powershell terminal.
+1. Have a CSV file with the users you want to add. This needs to be in the format `email,role`. You can copy the template if required.
+2. Import the Microsoft Teams module. Run `Import-Module -Name MicrosoftTeams` in your Powershell terminal.
+3. Authenticate to Microsoft Teams. Run `Connect-MicrosoftTeams` in your Powershell terminal and follow the instructions.
+4. Get your group ID. Run `Get-Team -User <EMAIL>`, substituting `<EMAIL>` for your Office 365 email address, to list all teams you are a member of.
 
-# How to use
-Open `Import-TeamsUsers.ps1` and modify the `$GroupId` and `$File` variables at the bottom, then execute the script from the command line.
+# Running the script
+1. Copy or move the CSV file to the same folder that the `Import-TeamsUsers.ps1` file is in.
+2. Open the `Import-TeamsUsers.ps1` file.
+3. Modify the `$GroupId` variable to the Group ID you found from step 4 in the section above.
+4. Modify the `$File` variables to the name of your CSV file.
+5. Run the script. 
 
-# Issues?
-If you're having problems or have an idea for a new feature, please check [here](https://github.com/luketainton/Import-TeamsUsers/issues) to see if someone else is having the same problem, and open an issue if one doesn't already exist. If you can implement a fix or feature request, please file a pull request!
+# Need help?
+If you require assistance running the script, please [send me an email](mailto:luke@tainton.uk?subject=I%20need%20help%20running%20Import-TeamsUsers).
+
+# Issues? Want a new feature?
+If you're having problems with the script or have an idea for a new feature, please check [here](https://github.com/luketainton/Import-TeamsUsers/issues) to see if someone else is having the same problem, and open an issue if one doesn't already exist. If you can implement a fix or feature request, please file a pull request!