The Slack platform became a popular choice among organizations of varying sizes as a quick and efficient way to establish an internal communication system. Getting rid of the application, however, may be a bit tricky depending on whether the user was simply invited to the platform or is a Workspace Primary Owner. Furthermore, users should consider if they want to delete only the Slack application or their entire account information.
Workspace Primary Owners who wish to deactivate their Slack account on a Mac can start by launching the Slack application and then clicking on their workspace name located in the upper left corner. From the available options, open 'Administration' and then 'Manage members.' This should open a browser page with your Workspace Primary Owner's account. Click on the three-dots icon and select 'Transfer ownership.' From the list of available group members, select one that you will transfer the ownership to. Confirm the change by entering your password and clicking 'Transfer Workspace Ownership.'
Mac users who were invited to a Slack workspace can deactivate their account by opening the application and clicking on their workspace name located in the upper-left corner of the window. From the available options, go to 'Profile & account.' When your account data opens, click on the 'More actions' icon. Select 'Open account settings.' Slack's website should open. Navigate to the 'Deactivate account' section and choose 'Deactivate your account.' You will need to input your password and then confirm your decision by clicking 'Yes, deactivate my account.' Click on 'Deactivate my account' once more.
The steps for uninstalling the Slack application from here on are the same for all Mac users. Open Finder and navigate to your 'Applications' folder. Locate Slack and drag it to the Trash. Open Finder again but this time select the 'Go' menu. Open 'Go to Folder' and type ~/Library/ and click the 'Go' button. Users will now have to visit each of the following destinations and delete all Slack-related files manually:
~/Library/Saved Application State/com.tinyspeck.slackmacgap.savedState/
Windows users also will have to decide whether they wish to delete all of their account information or only the Slack application. The easiest way to remove slack completely is by navigating to the Slack entry in the Start menu, right-clicking it, and selecting 'Uninstall.' To make sure that no residual files have been left on the system, uses will have to check the following locations manually:
C:\Program Files (x86)\Slack
C:\Users\[Your User Name]\AppData\Roaming\
Next, users will have to check for Slack's registry entries. To do so, press the Windows button + R on your keyboard. In the window that appears, type regedit and press Enter. Navigate to the corresponding Registry key depending on your system:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ (32-bit systems)
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\ (64-bit systems)
This should have removed the Slack client completely.