Avast is available for all operating systems (OS). It is one of the best antivirus apps that it’s widely accessible. It detects viruses and malware by scanning your devices and also blocking the impacts of these viruses.

Keep your drivers & Windows up to date to avoid errors

  • Windows Defender Firewall may block the Avast antivirus from accessing or working on your Windows 10/11. The Avast antivirus uses a lot of CPU power to process scans and detects threats, so it can slow down your computer. Uninstalling the Avast app will clear off your saved data and settings, so it should be the last option.

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Likewise, it makes use of a highly secure system to protect your device from external attacks and also protects your internet connection.

However, the Avast antivirus can develop faults, and they can affect some parts or the whole system.

There are lots of issues that you can come across while using the Avast antivirus. A common one is the Avast RPC server unavailable which we’ll be discussing in this article.

It means that the Avast antivirus RPC server is not accessible. It is common on Windows and can occur due to different reasons.

Why is Avast not working on Windows 10/11?

  1. Outdated Windows

Avast antivirus is an intelligent software that requires a stable system to function. However, if you are trying to run it on outdated Windows, you may encounter some issues.

Some features are expected to be available on your Windows but are missing due to a lack of updates. So, running the Avast on outdated Windows may prevent it from working.

  1. Firewall Defender interference

The Firewall protects your computer from incoming threats. However, if it perceives Avast as a threat, it can prevent it from working or installing on your Windows.

  1. Avast needs a repair

Like other software, Avast may stop working if there’s something wrong while installing or configuring it. So, it may not work on Windows because it requires you to run a software repair on it.

Some PC issues are hard to tackle, especially when it comes to corrupted repositories or missing Windows files. If you are having troubles fixing an error, your system may be partially broken. We recommend installing Restoro, a tool that will scan your machine and identify what the fault is.Click here to download and start repairing.

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Can Avast deliberately slow down my computer?

Avast, like other antivirus software, can slow down your computer. This is due to the real-time protection it offers. So, the activities of the Avast antivirus may have some effects on your computer.

Some app components install with the Avast antivirus, these apps can draw down the speed of your computer. However, you can disable these apps in Avast settings.

What can I do if the Avast RPC server is unavailable?

1. Repair system error using Windows Troubleshooting Tool

  • Click the Start icon on the left-hand bottom of the screen.
  • Select Settings and click Update & Security.
  • Click Troubleshoot and select the type of troubleshooting you want to initiate, then select Run the troubleshooter.
  • Follow the prompts, and once it detects an error, click the Repair All errors option.
  • Reboot your computer.

2. Repair corrupted registry files

  • Press the Windows + R keys to launch the Run dialog box.
  • Type Regedit in the search box and click the OK button to execute the command.
  • Go to the following directory or path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\RpcSs
  • Double-click on the Start folder under the RpcSs to correct the Remote Procedure Call.
  • Set the Value data to 2 and click the OK option to save the changes.
  • Restart your computer to sync the changes.

If the errors stem from corrupted files, making these changes will fix them directly in the registry editor.

As an alternative, you have automatic methods that will do your job in less time and without causing other issues.

For instance, Restoro is a repairing tool created to fix broken system files in your registry and replace them from its official online repository.

This way, you resolve corrupted registry files and fix the connection errors with Avast servers now.

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3. Configure Windows Firewall filter

  • Press the Windows key, input the Control panel, and launch it.
  • Select Windows Firewall and click on the Allow an app through Windows Firewall option.
  • Click on Remote Assistance, then enable it.
  • Restart your computer.

4. Uninstall the Avast antivirus app

  • Press the Windows + I keys to prompt the Settings app.
  • Click on Apps and select the Apps & Features option.
  • Select the Avast antivirus application and click the Uninstall button.
  • Restart your computer and reinstall the Avast antivirus app.

This is an effective alternative to fix complications that could have risen from the package installation process. However, uninstalling the Avast app should be the last option to try. It will completely delete the app’s saved data from your device, and you’ll have to reinstall it again.

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Also, Updating your Windows is another effective fix for the Avast RPC server not available’ issue.

Furthermore, installing the Avast antivirus on Windows can cause several issues. However, you can read about how to fix the Avast won’t open in Windows 10/11 issue. Also, you can learn about how to fix Avast Secure Line VPN not working.

If the advices above haven’t solved your issue, your PC may experience deeper Windows problems. We recommend downloading this PC Repair tool (rated Great on TrustPilot.com) to easily address them. After installation, simply click the Start Scan button and then press on Repair All.

Still having issues? Fix them with this tool:

  • Avast issues

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