How to enable or disable SMB one file sharing protocol in Windows. Still using SMB one for file sharing. This legacy protocol poses major security risks and it's likely time to disable it. In this video, we'll cover how to check disable, or if absolutely necessary, enable SMB one in Windows. Before we begin, be sure to subscribe to Ninja one's IT video hub and our YouTube channel for more tech content like this. What is SMB one? SMB one or server message block version one is Microsoft's original file sharing protocol from the 1980s as a legacy file. The protocol is vulnerable to attacks like WannaCry in 2017, which used the eternal blue exploit to spread rapidly across networks. Microsoft deprecated SMB one in Windows 10 and Windows server 2016 and has strongly recommended disabling it ever since. Enabling the protocol should only be done when necessary. Disabling SMB one in Windows to disable SMB one. You can use the Windows features gui, PowerShell or group policy. The first method involves using the Windows feature or the GUI method. Press win plus R type control panel and press enter. Navigate to programs and then choose programs and features. Click turn windows, features on or off. Locate SMB 1.0 slash CIS file sharing support and uncheck. Click okay to apply changes. Then restart your pc. If you're using PowerShell, run it as an administrator and type to disable SMB one client use to disable SMB one server use. The final method is via group policy, which can only be used by system administrators. To use this method, open group policy management console, create or edit A GPO linked to your target. Ou navigate to computer configuration administrative templates. Ms. Network client, Microsoft Network. Client set configure SMBV one client driver to disabled. Also navigate to MS Network server. Microsoft Network Server set configure SMB V one server to disabled verifying SMB one is disabled after disabling SMB one, you'll need to verify that it's off in PowerShell. Run. Get SMB server configuration pipe select enable SMB one protocol. If it returns false. SMB one has been successfully disabled enabling SMB one in Windows. There are two ways to enable SMB one in Windows, but this should only be done as a last resort and when absolutely necessary. Via Windows feature or gooey method, open control panel programs, programs and features. Turn Windows features on or off. Check the box for SMB 1.0 slash CIS file sharing support. Click okay and restart. Enabling SMB one via PowerShell also needs administrator privileges to enable SMB one client use to enable SMB one server use. For more information, check out our official blog post on how to enable or disable SMB one file sharing protocol in Windows linked in the description below. Be sure to subscribe to Ninja One's IT video hub and our YouTube channel for more tech content like this.