Microsoft is at the end of disabling SMB1 Support in Windows 11

The SMB1 file-sharing protocol is being disabled by default in Windows 11 and Microsoft is in the final phase of ending it. Microsoft’s Program Manager Ned Pyle posted the decision in Microsoft’s tech community forum. Old network storage devices work under the SMB1 service and disabling it will cause issues with file sharing.

The disabling of the SMB1 didn’t happen overnight. Rather, Microsoft disabled this file-sharing protocol by default from all editions of Windows starting in 2017. The client service was also disabled in Windows 10 pro edition in 2018. SMB2 was introduced in the year 2007 which is a more secure version of the protocol. Since then, SMB1 was replaced by SMB2 and since old servers might use the SMB1, it wasn’t completely removed. Version 3.1.1 of the SMB2 was added to Windows 10 in 2016.

Microsoft’s Program Manager Ned Pyle said that “the disabling of the client in the Home edition of Windows came last since it will cause consumer pain among folks who are still running very old equipment, a group that’s the least likely to understand why their new Windows 11 laptop can’t connect to their old networked hard drive.”

SMB1 feature can be installed manually by system admins and users if they need it. Also, if you are using SMB1 and upgrading your PC to Windows 11, the upgrade will not disable the protocol. Microsoft will take a step further and remove the DLL files and drivers required to run the SMB1 support from the operating system.

Pyle further reported, “The company will provide an out-of-band unsupported install package for organizations or users that still need SMB1 to connect to old factory machinery, medical gear, consumer NAS, etc.”

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