Code Bible

W10 SMB1

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Enable SMB1 on Windows 10

Starting with Windows 10 Fall Creator’s update (1709) SMB1 protocol is disabled by default. It can be re-enabled in one of two ways

Enable it in Windows Features

  1. Open the Start Menu
  2. Search for “Turn Windows Features On or Off”
  3. Scroll down and expand “SMB 1.0/CIFS File Sharing Support”
  4. Check off “SMB 1.0/CIFS Client” to connect to an SMB1 share
  5. Check off “SMB 1.0/CIFS Server” to allow SMB1 clients to connect to your shares

Enable in the registry

  1. Open RegEdit
  2. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters
  3. Open or create AllowInsecureGuestAuth
    • It should be a REG_DWORD
  4. Set it to 1

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