Windows 10: Windows 10 uses SMB1, 2 or 3?

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  1.    21 Feb 2016 #1

    Windows 10 uses SMB1, 2 or 3?


    Hi, everyone is reporting SMB issues with sharing.

    I wanted to know what exactly is SMB and which one is Windows 10 using which is causing such problems?
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  2. philc43's Avatar
    Posts : 2,029
    64bit Win 10 Pro ver 1607 Build 14393.693
       21 Feb 2016 #2

    Does this help? https://support.microsoft.com/en-gb/kb/2696547

    I have understood that W10 seems to be disabling SMBv1 by default with the latest builds. This should not be happening.
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  3.    21 Feb 2016 #3

    philc43 said: View Post
    Does this help? https://support.microsoft.com/en-gb/kb/2696547

    I have understood that W10 seems to be disabling SMBv1 by default with the latest builds. This should not be happening.
    And what does SMB have to do with the router?
    Some users reported problems with network file sharing after changing their router.
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  4. bro67's Avatar
    Posts : 3,159
    EL Capitan
       22 Feb 2016 #4

    It is for computer to computer. But also controls how Windows knows where and how to find the other machines on the network.

    SMB is short for Samba. Microsoft neutered their version, so that it is not fully capable of connecting to anything running Linux, which is every Router, NAS, Printer embedded software, etc.
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  5.    22 Feb 2016 #5

    bro67 said: View Post
    It is for computer to computer. But also controls how Windows knows where and how to find the other machines on the network.

    SMB is short for Samba. Microsoft neutered their version, so that it is not fully capable of connecting to anything running Linux, which is every Router, NAS, Printer embedded software, etc.
    But why did they make such a move?
    Or no one has any idea?
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  6. bro67's Avatar
    Posts : 3,159
    EL Capitan
       23 Feb 2016 #6

    Because they believed that there was a security issue with SMB 1 & 2, which there is not.

    SMB 3 is not backwards compatible with Samba 4.x, along with they did not carefully think this out too well.

    Why do they do half of the stuff that they do, to frustrate end users.
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  7.    23 Feb 2016 #7

    bro67 said: View Post
    Because they believed that there was a security issue with SMB 1 & 2, which there is not.

    SMB 3 is not backwards compatible with Samba 4.x, along with they did not carefully think this out too well.

    Why do they do half of the stuff that they do, to frustrate end users.
    Any idea if RedStone fixes this?

    If not, I will have to manually enable SMB1 and 2 on all my devices.
    Will this break anything such as slow speed issues or certain other devices not showing up?
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  8.    23 Feb 2016 #8

    Hi there

    One problem I notice with SAMBA to W10 is that the Linux boxes while seeing W10 seem to get a strange message when you try and access the Windows C drive -- no problem with any other Windows share or the "Users" directory on the C drive.

    Cheers
    jimbo
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  9.    23 Feb 2016 #9

    jimbo45 said: View Post
    One problem I notice with SAMBA to W10 is that the Linux boxes while seeing W10 seem to get a strange message when you try and access the Windows C drive -- no problem with any other Windows share or the "Users" directory on the C drive.
    If you mean C$ Administrative share then that is because of UAC. You could add a LocalAccountTokenFilterPolicy DWORD in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System and set it to 1.

    Access denied to Administrative (Admin) shares in Windows 8 - 4sysops
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  10. OldMike65's Avatar
    Posts : 21,792
    Windows10Pro 64Bit on 2 DeskTop Computers
       23 Feb 2016 #10

    lx07 said: View Post
    If you mean C$ Administrative share then that is because of UAC. You could add a LocalAccountTokenFilterPolicy DWORD in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System and set it to 1.

    Access denied to Administrative (Admin) shares in Windows 8 - 4sysops
    Nice to see YOU back......
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