Apps and Task Manager Won't Open after Installing KB5034763

Problems and solutions caused by the February update of Windows 10 application and task manager cannot be opened

After the release of the Windows 10 February update (KB5034763), many users reported experiencing a series of new problems, such as the app and task manager not being opened. This article will provide some solutions.

KB5034763 Application and Task Manager cannot be opened after update

Microsoft has launched the KB5034763 update to solve many long-standing problems, but the update has led to new problems. Problems reported by users include: important tools such as task manager and settings are inaccessible; startup application cannot be loaded; blue screen of death occurs frequently; mouse behavior is abnormal; "Shut down" and "Restart" options in the start menu fail; a prompt message "Preparing for Windows" appears during startup, which reminds people of system reinstallation, even if the system is not completely installed.

The inability to open the application and task manager is a common failure after the KB5034763 update.

Recovery of lost files after KB5034763

If you lose important files after installing KB5034763, you can use the MiniTool Power Data Recovery tool to recover. This is a professional data recovery tool that can recover files from all data storage drives and Windows computers, especially good at recovering data that has not been overwritten by new data. MiniTool Power Data Recovery Free Edition allows you to scan the drives you saved before losing files and recover 1GB of files for free.

How to fix the problem caused by the KB5034763 update?

If you cannot start the application and Task Manager after installing KB5034763, or you encounter other problems caused by the update, you can uninstall the update or restore the system to the state before KB5034763 is not installed.

Method 1: Uninstall KB5034763 in Windows 10

Step 1. Press the Windows I key to open the Settings app.

Step 2. Go to Update and Security > Windows Update .

Step 3. Select View Update History in the right panel.

Step 4. Click Uninstall Update on the next page.

Step 5. Select Security Update for Microsoft Windows (KB5034763) .

Step 6. Click Uninstall .

Step 7. Click Yes on the pop-up interface to confirm uninstallation.

Method 2: Perform system restoration

If you enable system restore and create a system restore point before installing KB5034763, you can restore the system to an earlier state. This can also remove KB5034763 from your computer and resolve issues that the app and task manager cannot be opened.

Step 1. Press Windows R key to open the Run dialog box.

Step 2. Enter rstrui.exe in the Run dialog box and press Enter to continue.

Step 3. On the pop-up interface, you need to click the Next button to continue.

Step 4. Select the target restore point.

Step 5. Click Next .

Step 6. Verify the details, then click Finish and wait for the process to complete.

The problem you are having should go away after using one of the two methods mentioned above. To avoid installing this update again, you can disable automatic Windows updates or hide this update.

Further reading

In the process of finding a solution, users find that they have to weigh uninstalling problematic updates or performing system restores, both of which can temporarily solve the problem. However, future updates are still a hidden danger, and cautious users may choose to temporarily stop Windows updates, at least after Microsoft releases a comprehensive patch to resolve various issues in KB5034763.

For those who unfortunately encounter the annoying 0x800f0831 Windows 10 update error and KB5034763 issue at the same time, the road to solving the problem is challenging. Recommended methods include fixing corrupt system files, painstakingly troubleshooting network connectivity, or taking more intense measures to reset update components, each of which requires a lot of time and effort.

If you have problems using MiniTool Power Data Recovery, you can contact us via [Contact Information].

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