1 Open Windows Security, and click/tap on the Virus & threat protection icon. (see screenshot below) 2 Click/tap on the Manage settings link under Virus & threat protection settings. (see screenshot below) 3 Turn off Real-time Protection. (see screenshot below) 4 Click/tap on Yes when prompted by UAC. I suggest you to un-install Bit defender firewall and check. 1) Press Windows and x key to open a task list from the bottom left corner of the screen. 2) Select Control Panel. 3) Select Programs and Features. 4) Double click on the program you want to uninstall and follow the onscreen instructions. Hope it helps. Microsoft Defender is a solid antivirus that's effective at protecting your PC. If you want some extra protection, Malwarebytes is an excellent addition to Microsoft Defender. Windows 10 and Windows 11 won't hassle you to install an antivirus like Windows 7 did. Windows now includes a built-in free antivirus called Microsoft Defender. Microsoft does have browser extensions for Chrome and Firefox but they’re limited to machines running the Pro, Enterprise or Education versions of Windows 10 and Windows 11. Tips to protect your computer. Use a firewall. Windows has a firewall already built in and automatically turned on. Keep all software up to date. Make sure to turn on automatic updates in Windows Update to keep Windows, Microsoft Office, and other Microsoft applications up to date. Turn on automatic updates for non-Microsoft software as well Like Windows Firewall, TinyWall is a lightweight solution with a single purpose, but the similarities end there. It's compatible with versions of Windows ranging from Vista to 10, which covers pretty much every Windows computer, even the surprising amount of stragglers still on Windows 7. The router that my ISP has delivered contains an IPv6 firewall. The only configuration option is whether it is on or off. Apparently, this firewall simply denies all incoming connections. I understand this is to prevent exposing all hosts and all their open ports to the entire internet. Firewall and OSI Reference Model. A firewall system can work on five layers of the OSI-ISO reference model. But most of them run at only four layers i.e. data-link layer, network layer, transport layer, and application layers. The number of layers envelops by a firewall is dependent upon the type of firewall used. Windows Defender is an antivirus program that comes built-in with Microsoft Windows 10. As it provides right out-of-the-box antivirus defenses after installation, it is a convenient tool. But many people keep wondering (and rightly so) if Windows Defender is good enough. The answer is ‘yes,’ but it has some shortcomings. h4j1.