While installing Webroot antivirus software, you may encounter some common issues that can be resolved with a few simple solutions. One common issue is when the installer freezes or stops responding. In this case, try restarting your device and running the installer again. Another issue could be that the webroot installer is unable to complete the installation due to conflicting software or outdated drivers. This can be resolved by updating your device's drivers and ensuring that no other antivirus software is installed.