How to enable and disable SMBv1, SMBv2, and SMBv3 in Windows and Window
Summary This article describes how to enable and disable Server Message Block (SMB) version 1 (SMBv1), SMB version 2 (SMBv2), and SMB version 3 (SMBv3) on the SMB client and server components. Warning: We do not recommend that you disable SMBv2 or SMBv3. Disable SMBv2 or SMBv3 only as a temporary troubleshooting measure. Do not leave SMBv2 or SMBv3 disabled. In Windows 7 and Windows Server 2008 R2, disabling SMBv2 deactivates the following functionality: For more information contact Microsoft office support number+1-855-955-2061. Request compounding - allows for sending multiple SMB 2 requests as a single network request Larger reads and writes - better use of faster networks Caching of folder and file properties - clients keep local copies of folders and files Durable handles - allow for connection to transparently reconnect to the server if there is a temporary disconnection Improved message signing - HMAC SHA-256 replaces MD5 as hashing algorith...
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