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How to fix Bitdefender update failed errors on Windows 10/11

7 min. read

Updated onMarch 26, 2024

updated onMarch 26, 2024

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Key notes

Without a doubt, Bitdefender is one of thebest antivirus solutionsfor both personal devices and PCs. But it needs to be regularly updated for the best results.

Now, a lot of times users have complained of encountering variousBitdefenderupdate errors forcing them to abandon the update process and risking theirWindows 10PCs.

The good news is that you don’t have to give up since most of theseerrorsare easy to fix. Here is how to maneuver around variousBitdefenderupdate errors.

What can I do if the Bitdefender update fails?

1. Make sure Bitdefender update has been properly set up

This applies to someBitdefenderversions, especially the older ones. Note that for the latest editions,Bitdefenderauto-updatefile location is configured automatically during installation.

2. Try out a different antivirus solution

Users looking for an error-free antivirus experience will most likely appreciate our pick for today.

No matter if you are a regular user or a hardcore gamer, this software offers you the best protection against different types of online threats.

It is an excellent choice for protecting your privacy and is useful for when you use the Internet to shop, for online banking, to work, and to communicate. Use it for your Windows, Mac, Android, and Linux devices.

When it comes to sensitive data, passwords, online payments, webcam,s and smart devices, all of them are secured with this powerful antivirus.

When it comes to online banking, this software offers you a high level of protection so you won’t have to worry about unauthorized access to your computer.

ESET HOME Security Essential

3. Verify that Bitdefender isn’t being blocked by the firewall

4. Turn off other firewalls

Well, in some cases, the problem fails to go away even after implementing the first two recommendations so it’s time to turn our attention to other Firewall software.

And here the remedy is straightforward: Just turn off or uninstall any other Firewall software (IncludingWindows own Firewall) and see if you’ll get lucky.

5. Verify that your proxy settings are properly set up

Bitdefenderwill now use the specified proxy settings to connect to the Internet for update purposes.

If you use a proxy to connect to the Internet, you must have properly configuredBitdefenderwith the correct proxy settings for theBitdefenderprogram updates to work.

In general,Bitdefenderantivirus should automatically detect and import the existingproxy serversettings from your system.

But there is no guarantee that it will always do this so sometimes a manual configuration is necessary.

6. Manually update Bitdefender

Bitdefender releases its combined virus definitions (and scan engine updates) on a weekly basis (every Friday) in form of theweekly.exeapplication and you could still use it though this should everything else prove unsuccessful.

That’s all. YourBitdefendershould now be up to date.

7. Uninstall and reinstall Bitdefender

If you are not yet lucky, try uninstalling your BitDefender version then restart the computer.

8. Upgrade to a newer version

You can always upgrade to the newest version ofBitdefender. The process should be free as long as your subscription is still valid.

9. Contact Bitdefender’s support

ContactingBitdefender’s highly professional technical support team could be the way to go if the saidBitdefenderupdateerrorsstill remain.

You need toopen a ticketto do this. The technical team will then request the exact error message which you can obtain as described above.

How can I fix Bitdefender Free Update Failed Error 2024?

1. Scan your PC for errors

2. Free up space

3. Manual update

You can as well try to update theBitdefendervirus definition files manually using the steps I highlighted earlier (download the weekly.exe file).

Most of theBitdefenderUpdate errors are triggered byInternet connectivity issues.

For instance, your connection may have temporarily failed, your proxy settings are wrong, or you have a firewall blocking an ongoingBitdefenderupdate.

Luckily, as you have seen, all these are problems you can easily beat using the above solutions. Try the above fixes and alert us (via the comments section) if you encounter further problems.

How to fix Bitdefender update failed errors on Windows 10/11#

What can I do if the Bitdefender update fails?#

1. Make sure Bitdefender update has been properly set up#

2. Try out a different antivirus solution#

ESET HOME Security Essential#

3. Verify that Bitdefender isn’t being blocked by the firewall#

4. Turn off other firewalls#

5. Verify that your proxy settings are properly set up#

6. Manually update Bitdefender#

7. Uninstall and reinstall Bitdefender#

8. Upgrade to a newer version#

9. Contact Bitdefender’s support#

How can I fix Bitdefender Free Update Failed Error 2024?#

1. Scan your PC for errors#

2. Free up space#

3. Manual update#