Can't access to Windows 10 share from a Windows 2000 machine

Question

Recently made a hard decision to upgrade to Windows 10, a trend unstoppable.

After that I reinstalled VirtualBox and import all of my VMs (Win2K+Win7). Found out that Windows 2000 guests can't access my share on the Windows host anymore. After changing LsaCompatibilityLevel to 1, still no use. Meanwhile, the Windows 7 guest can access it without disturbances.

Anymore I can do to solving the issue? Thank you.

Solution

I think that Win 2000 does not support SMBv2 , and with the Win10 update (disable SMBv1 from Windows 10RS3) All Win OS prev Win 2000 will not access your Win 10. link

Comments

[Appleoddity]

You need to enable NTLM v1. See security level 1 here: docs.microsoft.com/en-us/windows/device-security/…

[Appleoddity]

technet.microsoft.com/en-us/library/cc960646.aspx - registry info here

[midmaestro]

Back from work and had some tests. Sadly it didn't worked, either.

[midmaestro]

Followed the article, installed SMB1.0 server, restarted the lanmanserver on Win10 host, tried every value 0-5 of lmcompatibilitylevel, still actively refused as 'file not found' error appeared instantly on the Win2K guest.

[InterLinked]

WORKS for me, once I enable SMB 1/CIFS support in Windows 10, no issues after that. Would be nice not to have to do that, but it does work. This is with Windows 10 v1809

[midmaestro]

Pwned by Microsoft. Anyway I gave up and use \\Vboxsvr now...