Share this article
Improve this guide
Windows Defender Error 0x80073b0: 4 Quick Fixes
4 min. read
Updated onApril 3, 2024
updated onApril 3, 2024
Share this article
Improve this guide
Read our disclosure page to find out how can you help Windows Report sustain the editorial teamRead more
Key notes
Windows 10is a near-complete package when it comes to having an operating system at home, as it comes with pretty much every kind of built-in tool imaginable.
For example, it comes with its own lines of defense in the form of a firewall program and antivirus known asWindows 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, thisantivirusissue 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
SinceWindows Defenderis 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 theAppsmenu fromSettingsand 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.
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.
ESET HOME Security Essential
2. Modify certain registries
If you can’t access the Registry Editor, things aren’t as scary as they seem. Check out thisstep-by-step guideand 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 thebest antiviruses with unlimited licenseto 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.
More about the topics:Windows Defender issues
Teodor Nechita
Eager to help those in need, Teodor writes articles daily on subjects regarding Windows, Xbox, and all things tech-related.
When not working, you may usually find him either at the gym or taking a stroll in the park, trying to find inspiration for the next articles he may write.
User forum
0 messages
Sort by:LatestOldestMost Votes
Comment*
Name*
Email*
Commenting as.Not you?
Save information for future comments
Comment
Δ
Teodor Nechita