What to do if kb4012212 installation fails

Solution: 1. Restart the computer; 2. Check system requirements; 3. Turn off security software; 4. Clear temporary files; 5. Reset Windows Update components; 6. Use Windows Update troubleshooting tools; 7. Manually install updates.

When the KB4012212 patch installation fails, it may cause some trouble and confusion to users. Here are some common solutions you can try to fix the installation failure issue:

1. Restart the computer: Sometimes, some temporary problems during the installation process may cause the patch installation to fail. Try restarting your computer and running the patch installer again to see if the issue is resolved.

2. Check the system requirements: Make sure the computer meets the system requirements for installing the KB4012212 patch. For example, a patch may require specific operating system versions, hardware requirements, or other prerequisites. If your system does not meet the requirements, you may need to upgrade your operating system or update your hardware drivers.

3. Turn off security software: Some security software (such as firewalls, anti-virus software, etc.) may interfere with the patch installation process. Try turning off or disabling these security software temporarily and running the patch installer again to see if the problem is resolved. Please note that you need to be cautious when disabling security software to ensure that the security of your computer is not compromised.

4. Clear temporary files: Temporary files on your computer may interfere with the patch installation process. These temporary files can be cleared using the Disk Cleanup tool or by manually deleting the contents of the temporary folder. Then run the patch installer again to see if the issue is resolved.

5. Reset Windows Update components: Sometimes, problems with Windows Update components may cause patch installation to fail. You can try resetting Windows Update components to fix possible problems. You can run the following commands as an administrator in the command prompt:

- net stop wuauserv

- net stop cryptSvc

- net stop bits

- net stop msiserver

- ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

- ren C:\Windows\System32\catroot2 catroot2.old

- net start wuauserv

- net start cryptSvc

- net start bits

- net start msiserver

6. Use the Windows Update Troubleshooting Tool: Windows provides an update Troubleshooting tool that automatically detects and fixes update-related issues. The tool can be found in the Update & Security section of Windows Settings.

7. Manually install updates: If none of the above methods solve the problem, you can try to manually install updates. You can download the update file from Microsoft's official website and follow the instructions to install it manually.

If the above methods still cannot solve the problem of installation failure, it is recommended to contact Microsoft customer support or seek help from professional technicians, who may provide more specific solutions.

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