The reason is that the related processes are loaded at startup. You may find that Microsoft Edge can load very fast on Windows 10 devices once you sign in to a user account. By the way, if you have any problems in managing hard drive or partition in Windows 10, we recommend you to use the professional tool – MiniTool Partition Wizard. It loads some processes as well as New Tab and Start in the background at startup to launch application quickly in Windows 10. Microsoft Edge is the default web browser of Windows 10. Stop Microsoft Edge From Loading at Startup Via Registry Editor.Stop Microsoft Edge From Loading at Startup Via Group Policy.