The error code -1004 indicates that you are connected to a proxy but didn’t activate proxy usage in Bitdefender, so it can use this type of connection. Make sure the connection is stable, then try again to update Bitdefender. The update error codes -1002 and -1011 are caused by a temporary issue with your internet connection.
If they were followed by successful updates, it means Bitdefender is up-to-date and no further actions are required.
Wait until the operation reaches 100% and fixes any system issues, then restart the computer.Ĭheck how many update errors -100 were encountered by the Bitdefender product and see if any of them were followed by successful updates. Type Dism /Online /Cleanup-Image /RestoreHealth and then press ENTER. 
Type Command Prompt in the search bar, then right-click on the result and select Run as Administrator.
If the SFC command fails or can’t replace a corrupted file click the Windows Start button. Run the DISM command (available only for Windows 8 and 10) Wait until the SFC verification reaches 100% and fixes the errors automatically. Type sfc /scannow then press ENTER on your keyboard. Enter Y when asked whether you wish to run Chkdsk next time the system restarts. Error 21 means that the device is not ready. Error 19 means that the media is write protected. Enter Y when asked whether you wish to run Chkdsk next time the system restarts.īoth errors indicate a system-level issue. Make sure to include the spaces indicated. Then type chkdsk c: /r and press ENTER again. Type cd\ and press ENTER on your keyboard. 
Click the Windows Start button and type Command Prompt in the search bar, then right-click on the result and select Run as Administrator. The update error code 3 indicates a Hard-Drive error. On the other hand, if there aren’t any successful updates, update Bitdefender offline until you sort out the connectivity issues. If Bitdefender still fails to update after a 24-h wait, search for the error code in the table below to try and fix it. Important! As long as there are only random update errors followed by successful updates, it means Bitdefender is up-to-date. 
Open the main Bitdefender window and click on ‘Notifications’ in the left-side menu. Here you’ll find a list of the most common update errors encountered by Bitdefender on Windows and quick-fix solutions for each error code.įirst steps for solving Update Errors in Bitdefender products for WindowsĪs a rule of thumb, always check the frequency of update errors.
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