Deal with windows update error 0x80240021 by Yourself

If you have a computer, you will never avoid to update your windows systems from time to time. However, you may not be able to update windows perfectly. Don't be afraid of the problem. In this article, I will offer some advice for you to fix windows update error. Let's take windows update error 0x80240021 as an example.

What Causes windows update error 0x80240021 Problem:

  • Failed to install the latest windows update.
  • System files are corrupted or damaged.
  • Windows Update application's unable to access specific user data.
  • Virus infection or Trojan attacks your PC.

Manual Instructions:

1. Reinstall the windows update at once. Even if you aren't good at computer skills, you can do the below steps with ease.

a. Click Start Button, and choose Control Panel. Click on All Programs and then click on Windows Update.

windows update error 0x80240021

b. Click Check for Updates to examine the potential risk for your PC.

windows update error 0x80240021

c. After the above step, if you still cannot fix windows update error 0x80240021, you had better install windows installer again.

2. Perform a system restore for your computer.

a. Click Start, type system restore in the searching box. Run System restore as administrator.

b. Then do as the restore instructions step by step.

Here offers a video instructions of how to restore your system to its original date.

Deal with windows update error 0x80240021 by Yourself

If the manual method doesn't work, you can also try the automatic steps below. At present, there are so many software for you to choose. I would like to recommend you an amazing update tool: SmartPCFixer. This is absolutely an easy-to-use tool for computer users to repair windows update error 0x80240021 problems.

Step 1: Please click the below button to download SmartPCFixer.

Step 2: Launch the software and click System Tools.

Step 3: Choose Windows Update, then SmartPCFixer will help you troubleshoot all windows update error 0x80240021 automatically.

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