Right-click the system tray icon of an anti-virus utility to select a Disable or Disable option from its context menu. If the problem no longer appears, it means that your firewall was blocking the app, so enable the firewall and adjust your settings accordingly.Īlso, disable any third-party antivirus utilities that might also include firewalls. Select now Disable Windows Defender Firewall for both connection types and click OKAY.Ĭheck if the problem is still there.Select Rotate Windows Defender Firewall Enabled or Disabled.Hurry the Windows key + S and type firewall.
Right-click on Notepad and select t Run as administrator to launch it.
How can I fix Viber if it won't open on Windows 10/11? 1. Your firewall and anti-virus may also interfere with the software and prevent it from accessing the Internet. If Viber keeps crashing while trying to open it, there may be issues with your cache, so you'll need to reset the app. In some cases, the absence of certain privileges will prevent you from using the software. There are several causes for this problem, and in most cases there is a problem with the software. How can I fix Viber if it won't open on Windows 11?.How can I fix Viber if it won't open on Windows 10/11?.