Navigate to https://slack.com/downloads
Click the “DOWNLOAD (64-BIT)” button
When prompted, select a location to save the installer and click the “Save” button
Once the installer has finished downloading, run the program.
When prompted, click the “Sign In” button.
This will open a web browser window asking you to Enter your workspace’s Slack URL.
Type nelbroteam in the box and click the “Continue” button
Click the “Sign in with Office 365” button
Enter your Nelson Brothers username (Ex. [email protected])
Click the “Next” button to continue.
Enter your password
Click the “Sign in” button to continue
When prompted to Stay signed in, Check the “Don’t show this again” box and click the “Yes” button to proceed to Slack.