There are two ways to do this:
A. From the K2 Workspace:
1. Go to the K2 workspace on the machine that K2 is running on (Example URL: http://domainname.com/workspace/Navigation/Navigation.aspx
2. Open the Management Console
3. Open the node for the machine that is running K2.
4. Right click on the processes node and click "Manage All Processes"
5. Click Select All, Stop in the top menu bar. Click OK.
6. Click Select All, Remove in the top menu bar. Make sure the checkbox is checked. Click OK.
7. Repeat step 5 for all pages of active or running processes.
B. From the K2 Process Portal
1. Go to the K2 process portal (Example URL: http://application.domainname.com/sharepointSite/K2ProcessPortal/).
2. On the landing page, go to the "Instances Summary" section.
3. Click on the number for the workflow process under the "Running" column that you want to stop.
4. A list of the different running processes will be displayed. Go to the page with the workflow instances that you want to stop. Click on the item and it will present a dropdown. Then click stop.
