The "servicing stack" is the code that installs other operating system updates. Additionally, it contains the "component-based servicing stack" (CBS), which is a key underlying component for several elements of Windows deployment, such as DISM, SFC, changing Windows features or roles, and repairing components. Jun 14, 2019 · Whenever you open the Task Manager, you will land on your preselected default tab. To configure this feature, follow the instructions below: On your keyboard, press Windows Key+S. Inside the Search box, type “Task Manager” (no quotes), then press Enter. Once the Task Manager is up, click Options on the menu at the top. Select Set Default Tab from the options. Set which tab you want to appear whenever you open the Task Manager.