Bitdefender is an excellent antivirus software to protect your device against potential malware threats. But sometimes, errors can happen during the software update. If you end up with Bitdefender error 100 during the update, we will help you resolve it. This error code is an isolated error that occurs due to several factors. Keep reading the instructions below to know how to fix the Bitdefender antivirus error code 100.
Solution 1: Update Bitdefender offline
Step 1:First, get the Virus Definition update and scan engine updates by downloading the weekly.exe package from the official Bitdefender site while you have the Internet connection on your computer.
Step 2:Next, save the downloaded package on your computer.
Step 3:To start the offline update, double-click the downloaded file. This will start the setup wizard.
Step 4:Click Next to start the installation.
Step 5:Agree to the License Agreement by clicking the I accept button.
Step 6:Click Next and select Install to start installing the updates.
Step 7:Finally, click Finish to complete the update and close the installation wizard.
Step 8:Restart your computer and check if the problem has been resolved. In case the Bitdefender antivirus error 100 reappears, try the next solution.
Solution 2: Reinstall Bitdefender antivirus
Step 1:On your Windows computer, open the Run dialog box by pressing the Windows + R shortcut keys.
Step 2:Type ‘appwiz.cpl’ in the Run dialog box and click OK.
Step 3:On the Uninstall or change a program screen, select the Bitdefender antivirus and its related programs.
Step 4:Click the Uninstall button and wait until the wizard appears.
Step 5:Select Reinstall in the wizard and wait until your Bitdefender antivirus is removed from your computer.
Step 6:If prompted, click on Restart device.
Step 7:Once your computer has been restarted, wait for the antivirus to download once more.
Step 8:Click Install after completing the download.
Step 9:Carry out the on-screen instructions to reinstall the Bitdefender antivirus.
Step 0:Click Finish and perform a quick scan.
Now, the Bitdefender antivirus error 100 should be fixed.