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Fix KB5028949 Windows Update Restart Loop for .NET Framework
Question details
The user needs to resolve an issue where the August 2023 cumulative update for .NET Framework (KB5028949) fails to install and continuously prompts for a system reboot.
- Product
- Windows Update
- Device & OS
- Windows
- Scenario
- Installing the KB5028949 cumulative update for .NET Framework 3.5 and 4.8.1 via Windows Update.
- Observed behavior
- The system repeatedly requests a restart to finish applying the update, but upon rebooting, the installation fails to complete and the prompt reappears in an infinite loop.
Ensure you are logged into an administrator account, as you will need elevated privileges to run command-line tools and modify background Windows services.
Run the Windows Update Troubleshooter and Check Services
Using the built-in diagnostic tool and verifying background services can automatically detect and resolve common update conflicts.
Windows includes an automated troubleshooter specifically designed to clear stalled update tasks. Pairing this with a manual check of the Background Intelligent Transfer Service (BITS) ensures the system has the proper permissions to download and apply updates.
Press Windows + I to open Settings. Navigate to System > Troubleshoot > Other troubleshooters. Locate 'Windows Update' and click the 'Run' button. Wait for the tool to diagnose and apply fixes.
Press Windows + R, type 'services.msc' in the Run dialog, and press Enter to open the Services management console.
Scroll down to find 'Background Intelligent Transfer Service' and 'Windows Update'. Double-click each service, ensure the Startup type is set to 'Automatic' or 'Manual', and verify the Service status shows as 'Running'.
Run SFC and DISM System Scans
System File Checker (SFC) and Deployment Image Servicing and Management (DISM) repair corrupted core Windows files that prevent .NET Framework updates from applying.
Reset Windows Update Components Manually
Clearing the local update cache forces Windows to download a completely fresh copy of the KB5028949 update, bypassing any previously corrupted download files.
Need a Reliable Office Suite Free From Update Disruptions?
System and .NET Framework updates can occasionally stall your PC, but your productivity shouldn't be affected. WPS Office offers a free, lightweight, and highly stable alternative to Microsoft Office that runs seamlessly on Windows without taxing your system resources.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button.
- 2. Install the Suite: Run the downloaded installer file and follow the straightforward on-screen prompts.
- 3. Start Creating: Open WPS Office to instantly view, edit, or create your documents, spreadsheets, and presentations.
Frequently Asked Questions
Why does KB5028949 keep asking my PC to restart?
This restart loop typically happens when the update files downloaded to your cache are corrupted, or a background process is preventing Windows from successfully replacing the older .NET Framework files during the boot sequence.
Can I permanently skip the KB5028949 update?
While not recommended long-term for security reasons, you can temporarily hide problematic updates using the official Microsoft 'Show or hide updates' troubleshooter tool to stop the restart loop while waiting for a patch.
Will an in-place upgrade delete my personal files?
No. If you choose to perform an in-place upgrade as a last resort using the Windows Media Creation Tool, selecting the 'Keep personal files and apps' option will preserve all your documents and installed programs while repairing the underlying OS.
