On the Before you begin page, select Start the Remove Roles and Features Wizard, and then on the following page, select Next.On the Server Manager Dashboard of the server where you want to remove SMBv1, under Configure this local server, select Add roles and features.Windows Server 2012 Windows Server 2012 R2, Windows Server 2016, Windows Server 2019: Server Manager method You can detect SMBv1 status, without elevation, by running: Get-SmbServerConfiguration | Format-List EnableSMB1Protocol. Here are the steps to detect, disable and enable SMBv1 client and server by using PowerShell commands with elevation. For more information about SMBv2 and SMBv3 capabilities, see the following articles: The SMBv2 protocol was introduced in Windows Vista and Windows Server 2008, while the SMBv3 protocol was introduced in Windows 8 and Windows Server 2012. Improved energy efficiency - clients that have open files to a server can sleep.Large MTU support - for full use of 10 Gigabit Ethernet (GbE).Client oplock leasing model - limits the data transferred between the client and server, improving performance on high-latency networks and increasing SMB server scalability.Improved scalability for file sharing - number of users, shares, and open files per server greatly increased.Improved message signing - HMAC SHA-256 replaces MD5 as hashing algorithm.Durable handles - allow for connection to transparently reconnect to the server if there's a temporary disconnection.Caching of folder and file properties - clients keep local copies of folders and files.Larger reads and writes - better use of faster networks.Request compounding - allows for sending multiple SMBv2 requests as a single network request.In Windows 7 and Windows Server 2008 R2, disabling SMBv2 deactivates the following functionality:
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