1. Main symptoms: IE version is too low.

2. Possible reasons: IE needs to be updated.

3. Solution:

1. Determine whether IE needs to be upgraded;

2. Download the corresponding IE version;

3. Reinstall IE.

4. How to upgrade IE browser:

1. First open your current browser version, then click the help menu on the menu bar, and click online help in the drop-down option that pops up. This is actually the official website of Microsoft. We can download and upgrade on the official website of its browser.

2. You can find the browser download page on the Microsoft website. After finding it, it will automatically detect the version of the browser you are using. For example, if you use IE8 browser, the download link of the latest version of IE will be displayed on the page. You can directly click to download and install it.

3. In fact, there is a more stable way to upgrade the browser, which is to use the system's automatic update function to achieve the browser upgrade. Open the control panel and find the system's automatic update option.

4. On the system update page, click the Check for Updates Now button on the right, and the system will automatically find and detect the patches and other program updates your system needs.

5. After checking all the programs and patches that need to be installed, there will be a page that shows that the browser update is a relatively important update, so click on this important update.

6. Then we will find the option for the latest version of IE in this series of patch lists. We select this option and click OK.

If you only select this item without selecting other items, the upgrade is likely to fail because the latest version of IE requires the support of many other patches.