0x80070643 After the Latest Update? Do This First Are you seeing Windows error 0x80070643 after installing the latest update? This error usually means an update or installation failed to complete successfully. It may be related to corrupted update files, damaged system components, or a problem with a specific security update. Before trying advanced solutions, follow these simple troubleshooting steps. 1. Restart Your Computer Restarting your PC can resolve temporary installation issues. Open the Start menu, select Power > Restart , and check Windows Update again. 2. Run the Windows Update Troubleshooter Open Settings . Go to System > Troubleshoot > Other troubleshooters . Find Windows Update and click Run . Follow the instructions on the screen. 3. Repair Corrupted System Files Open Command Prompt as an administrator and run: DISM /Online /Cleanup-Image /RestoreHealth After it finishes, run: sfc /scannow Restart your computer when both commands are complete. 4. Check the Fa...