Troubleshooting Online Antivirus Scan: Troubleshooting Guide

By / March 3, 2023

If an online scan does not run, users get an error message. Here are the best troubleshooting tips for resolving the online antivirus scan failure issue.

  • Antivirus scans are a necessary evil.

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  • 1. Download and install ASR Pro
  • 2. Run a scan to find and fix errors
  • 3. Reboot your computer for the changes to take effect
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    Run an SFC scan

    1. Press Windows + S to open the Search menu, type cmd in the text field, and click on the relevant search result.
      Press Windows + S to open the Search menu, type cmd in the text field, and click on the relevant search result.
    2. Right-click Command prompt, and go to Run as Administrator.
    3. In the Command prompt window, enter sfc/scannow in the text field, and hit the Enter key.
    4. Wait until the scan finishes, and restart your computer.
    5. Run a DISM scan
      Press Windows + S, type cmd in the text field, and click on the relevant search result.
    6. Right-click Command prompt, and click on Run as Administrator.
    7. In the Command prompt window, enter dism/online/cleanup-image /RestoreHealth in the text field, and hit the Enter key.
      In the Command prompt window, enter dism/online/cleanup-image /RestoreHealth in the text field, and hit the Enter key.
    8. Wait until the scan finishes, and restart your computer.
    9. Run a DISM scan with System File Checker
      Press Windows + S, type cmd in the text field, and click on the relevant search result.
    10. Right-click Command prompt, and click on Run as Administrator.
    11. In the Command prompt window, enter dism/online/cleanup-image /RestoreHealth /CheckHealth in the text field, and hit the Enter key.
      In the Command prompt window, enter dism/online/cleanup-image /RestoreHealth /CheckHealth in the text field, and hit the Enter key.
    12. Wait until the scan finishes, and restart your computer.

    Reinstall Windows Defender

    1. Press Windows Key + X to open the Power User Menu and select Settings.
    2. Choose Update & Security.
    3. Select Windows Security from the left pane.
      Select Windows Security from the left pane.
    4. Select (left) Windows Defender Antivirus.
    5. Click the Uninstall button.
    6. Wait for the removal process to complete and try re-registering the antivirus.

    PC problems? Solve them in minutes.

    Is your computer running slow, crashing, or giving you the dreaded Blue Screen of Death? Well, don't worry - there's a solution! ASR Pro is the ultimate software for repairing Windows errors and optimizing your PC for maximum performance. With ASR Pro, you can fix a wide range of common issues in just a few clicks. The application will detect and resolve errors, protect you from data loss and hardware failure, and optimize your system for optimal performance. So don't suffer with a slow or crashed computer any longer - download ASR Pro today!

  • 1. Download and install ASR Pro
  • 2. Run a scan to find and fix errors
  • 3. Reboot your computer for the changes to take effect

    • Run the DISM /Online /Cleanup-Image /RestoreHealth command

    1. Press Windows + I to open the Settings app, and then click on Update & Security.
    2. Next, click on Recovery from the left pane, and then click on the Get started button under Reset this PC.
      Next, click on Recovery from the left pane, and then click on the Get started button under Reset this PC.
    3. Click on Keep my files and click on Next.
    4. Click on Keep my apps and click on Next.
    5. Once done, click on Reset.
    6. Restart your computer when prompted to do so.
      Restart your computer when prompted to do so.

    Perform a Repair Install

    1. In order to revert all changes on your operating system, you can try a repair install, which can be done through the Windows 10 installation media.
      In order to revert all changes on your operating system, you can try a repair install, which can be done through the Windows 10 installation media.
    2. First, insert the installation media into your PC.
    3. When prompted, select Repair your computer.
    4. Follow the instructions on the screen to complete the repair install.
    Get better performance from your computer with this software - download it to fix your PC today.

    Perform a System Restore

    1. The System Restore feature can roll back your file versions to the earlier date.
    2. Click the Start button.
      Click the Start button.
    3. Type in system restore.
    4. Select it from the search results.
    5. Select the desired restore point and click Next.
    6. Wait until Windows finishes the restore process.
      Wait until Windows finishes the restore process.
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