The latest preview update for Windows 11 has introduced an unexpected glitch within Task Manager, leaving users scratching their heads. Reports from Windows Latest indicate that this issue prevents Task Manager from closing properly, resulting in multiple background instances that quietly consume system resources.
Task Manager is an essential tool for Windows users, providing the ability to monitor performance, view running processes, and terminate unresponsive applications. Typically, closing it is a straightforward task—simply click the familiar “X” button in the top-right corner. However, following the October 2025 optional update (Build 26200.7019 / 26100.7019), this functionality has faltered. Instead of shutting down, Task Manager remains active in the background, and each time it is reopened, yet another instance is launched.
As these “ghost” processes accumulate, they can significantly impact system performance, making PCs feel sluggish. While the issue does not seem to affect every user, numerous reports on forums and social media suggest that many have encountered this bug after installing the latest preview build. The update, which brought a redesigned Start menu and various visual enhancements, appears to have inadvertently disrupted the closing mechanism of Task Manager.
How to Properly Exit Task Manager
Until Microsoft addresses this issue in a forthcoming patch, users are advised to avoid closing Task Manager using the “X” button. Here are some alternative methods to exit Task Manager safely:
- End a task from within Task Manager.
- Open Task Manager.
- Navigate to the Processes tab.
- Select “Task Manager” from the list.
- Click “End Task.”
- Restart Windows Explorer.
- In Task Manager, locate Windows Explorer under Processes.
- Right-click and choose “Restart.”
- This action refreshes your desktop and clears any ghost Task Manager entries.
- Use Command Prompt or PowerShell.
- Open Command Prompt or PowerShell (Admin).
- Type the command below and hit Enter:
taskkill /f /im taskmgr.exe - This command will force-close all Task Manager instances at once.
As this update remains in preview, it is anticipated that Microsoft will resolve the issue in the next cumulative or Patch Tuesday release. In the meantime, users should refrain from using the close button and rely on the methods outlined above to safely terminate Task Manager.
If the problem continues or significantly impacts performance, users may consider uninstalling the October 2025 optional update until an official fix is available.
