How to Fix Windows Defender Error Code: 0x80073b01 Problem?

Victim: "....I was on a site and a flash player update popped up and said that there was an update for "flash". I checked the certificate and it looked legit, so I had just clicked ask me later and then Windows Defender freaks out saying virus detected over and over. I tried clicking on the popup but nothing, then it said that windows needed to be restarted to delete a virus(or malware couldn't remember what it said). so I restarted it and i am not getting the error code. I also received an alert stating that windows could not make a backup because of a bad file or virus. "

Have you ever encountered the similar issues? Do you want to know how to solve it? Keep reading and you will get effective solutions to get rid of it completely.

Know about Windows Defender Error Code: 0x80073b01

Windows Defender Error Code: 0x80073b01 constantly appears on your screen when your computer infected with some kind of malware or viruses. This error can be caused by misconfigured files, viruses, or corrupt files data, etc. You should never take it slightly; otherwise, your computer will encounter more problems. For instance:

• Your PC performance and security can be degraded.
• Your system become more and more vulnerable for other malware or viruses.
• System files are corrupted and then result in the whole system mess up.
• Malicious files and registry entries are injected to your system without your consent.
• Your confidential information can be exposed and stolen for commercial purposes.

In accordance with these potential damages, I give some suggestions to be far away from Windows Defender Error Code: 0x80073b01:

• Avoid opening spam emails, and clicking ads and links you do know the source.
• Keep away from intrusive websites like pornographic websites. 
• Fix the habit of updating security system to break away from all possible security vulnerabilities. 
• Download applications or programs from official websites
• Scan your PC with reputed antivirus software regularly.

How to Fix Windows Defender Error Code: 0x80073b01 Problem?

Manual step to remove Windows Defender Error Code: 0x80073b01.

Step 1: Get into the safe mode with networking

<Restart your computer. As your computer restarts but before Windows launches, tap "F8" key constantly. Use the arrow keys to highlight the "Safe Mode with Networking" option, and then press ENTER>

Step 2: Stop all the related processes of Windows Defender Error Code: 0x80073b01

Press Ctrl+Alt+Del together to open Task Manager -> click on processes and tick Processes from all users box -> click on End Process to end all processes 

Step 3: Open Control Panel from Start menu and search for Folder Options.

When Folder Options window opens, click on its View tab, tick Show hidden files and folders and non-tick Hide protected operating system files (Recommended) and then press OK.

Step 4: Delete all the related registry entries 

Press Windows+R to launch Run…-> type Regedit into Open box and click OK to open Registry Editor-> find out all registry entries above and delete them

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "<random>" = "%AppData%\<random>.exe"
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run "<random>" = "%AppData%\<random>.exe"
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Settings
HKEY_CURRENT_USER\Software\Microsoft\Windows\Current Version\Policies\Explorer\DisallowRun \ msseces.exe.

Automatic step to fix Windows Defender Error Code and Optimize your PC with RegCure Pro

Malware prevention and removal is good. But when it comes to computer maintenance, it is far from enough. To have a better performance, you are supposed to do more works. If you need assistant with windows errors, junk files, invalid registry and startup boost etc, you could use RegCure Pro for professional help.

Step 1. Download PC cleaner RegCure Pro

 a) Click the icon below to download RegCure Pro automatically

 b) Follow the instructions to finish RegCure Pro installation process

Step 2. Run RegCure Pro and start a System Scan on your PC.

Step 3. Use the in-built “Fix All" scheduler to automate the whole optimization process.

Summary: Manual removal of Windows Defender Error Code: 0x80073b01 is complex and risky task, as it refers to key parts of computer system, and is recommended only for advanced users. If you haven’t sufficient expertise on doing that, it's recommended to download RegCure Pro to help you.