For example, it comes with its own lines of defense in the form of a firewall program and antivirus known as Windows Defender. However, this is too nothing more than a piece of software that can be easily susceptible to bugs and issues. One good example is Windows Defender Error 0x80073b01 which many users have reported to be giving them plenty of hard times. Thankfully enough, this antivirus issue is quite common, and there are several fixes that you can try in order to get rid of it. Thus, all you need is to continue reading the step-by-step guide written below.

How do I fix Windows Defender error 0x80073b01?

1. Remove any third-party antivirus and its remains

Since Windows Defender is the default antivirus tool of Windows 10, it goes without saying that interferences may appear between it and any other similar third-party tool. Unfortunately, this error can occur even if you already uninstalled the old third-party antivirus. So, make sure you did it completely. As such, simply open the Apps menu from Settings and remove it like any other software, while following the on-screen instructions. Some antivirus tools can only be removed via dedicated software downloaded from the developer’s website. Thus, make sure you document yourself regarding the steps of uninstalling your particular antivirus tool. Even if you got your reasons to eliminate the previous third-party antivirus, if you want a better defense and fewer problems, you might as well think about getting the tool below. SPONSORED Our recommended security solution is perfect for a modern lifestyle, where you practically work, play, and relax online. It focuses on defense and privacy with a multi-layered protection system that can counter even the latest threats. The software not only covers your PC, but all your devices, including your IoT components from the network like the router or the webcam.

2. Modify certain registries

If you can’t access the Registry Editor, things aren’t as scary as they seem. Check out this step-by-step guide and solve the issue quickly.

3. Run a SFC

The System File Checker scan will do just that, verify all the system files and do the necessary repairs to restore the things to normal.

4. Update your PC

Windows Defender is part of your system and it updates monthly, together with your OS. Checking and installing the latest updates can fix the problem. By following these steps, you should have cleared the Windows Defender error 0x80073b01 and now you can use it like it was intended. These methods have proven themselves to be very useful, and they are also very efficient in a number of other Windows Defender issues. However, if you’re tired of patching the old Windows Defender, pick one of the best antiviruses with unlimited license to get a taste of error-free security. If you know of any other method we may have missed out on that will fix Windows Defender Error 0x80073b01, then leave us a message in the comment section below.

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