A Guide to Fixing the UiHost.exe Application Error - Resolved!

Resolve annoying UiHost.exe application errors and restore McAfee WebAdvisor!

UiHost.exe application errors will prevent McAfee WebAdvisor from running properly, causing the system to face security risks. This article will provide a range of solutions to help you quickly resolve this issue.

UiHost.exe is the executable file of the McAfee WebAdvisor browser extension. It is compatible with multiple browsers and is responsible for many functions of the program, such as:

• Provide security risk ratings for the website;
• Real-time monitoring to prevent phishing and malware attacks;
• Alerts for potential threats.

When the UiHost.exe application error occurs, WebAdvisor cannot run and your system will lack protection. To better protect your data, it is recommended that you use MiniTool ShadowMaker free version to back up important files, folders, partitions, disks and systems. MiniTool ShadowMaker also provides a media builder for creating bootable USB drives to deal with situations where the system fails to boot.

How to fix UiHost.exe application error:

Method 1: Verify UiHost.exe file

First, make sure the UiHost.exe file is a legitimate McAfee file.

1. The correct file location should be C:\\Program Files\\McAfee\\WebAdvisor\\UIHost.exe . If the file is located elsewhere, it may be a virus.
2. Right-click UiHost.exe and select Properties.
3. In the Digital Signature tab, check if the signature name in the Signature List is "McAfee, LLC". If not, the file is suspicious.

Method 2: Update McAfee WebAdvisor

Updated WebAdvisor can fix known bugs. Here is a Chrome browser as an example:

1. Open Chrome and click on the three dot icons in the upper right corner.
2. Select Extensions > Manage Extensions and enable Developer Mode.
3. Click "Update" and wait for the update to complete.

Method 3: Update the browser

Keeping your browser updated avoids compatibility issues and system file conflicts.

1. Launch Chrome and click on the three dot icons in the upper right corner.
2. Select Help > About Google Chrome.
3. Chrome will automatically detect the latest version, which you can download and install.

After the update, restart Chrome to see if the problem is resolved.

Method 4: Disable other browser extensions

Disabling other extensions can avoid conflicts.

1. Go to "Manage Extensions" in Chrome, close all extensions, and only keep WebAdvisor.
2. Check if the problem persists. If the problem is resolved, enable the extension one by one to find out the conflicting extensions and delete them.

Method 5: Reinstall McAfee antivirus software

Reinstalling McAfee antivirus software can fix UiHost.exe application errors.

1. Right-click the Start icon and select Apps and Features.
2. Find McAfee Antivirus software and select Uninstall > Uninstall.
3. After uninstalling, download and install McAfee from the official website.

Other suggestions:

1. Use antivirus software to scan system viruses and malware.
2. Try a clean boot to avoid software conflicts.
3. Reset or reinstall the Windows system (this method is last resort).

Summarize:

The above method can effectively solve the UiHost.exe application error. Please try one by one. To better protect your data, please use MiniTool ShadowMaker to back up your important data.

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