Have to use SMB 1.0? Windows 10 April 2018 Update says NO

Microsoft: For goodness' sake, cover yourselves up. Nobody wants to see that

The Windows 10 April 2018 Update has been out for over a month now, and the rumbling of user dissatisfaction continues. This time it's networking problems for users still clinging to the venerable SMB1 protocol.

Users have taken to support forums, including Microsoft's own, complaining that the latest version of Windows 10 is taking a hard line against the use of the elderly networking protocol; not just disabling SMB1, but going so far as to block it even when customers attempt to switch it back on.

Some users have pointed a finger at Windows 10's built-in antivirus tools and reported success with a workaround that involves disabling Windows Defender and replacing it with something like Avast, though that approach can bring problems of its own.

Microsoft's Ned Pyle, author of a Microsoft TechNet post urging the dumping of SMB1, told El Reg:

I suspect they are referring to a problem where they have SMB1 client installed but running applications off a remote SMB1 share, while using antivirus that interrogates processes creating on remote paths through a minifilter driver. It’s not a general inability to connect or access files, I believe.

This would make sense given the workarounds users have come up with, and Pyle reckoned that a fix could appear in June's cumulative update. Users therefore don't have much longer to wait before they can once more connect to their own servers using the outdated networking protocol.

Microsoft has since updated a couple of Knowledge Base articles on the subject, KB4103721 and KB4100403. Both warn of a problem running programs from a shared folder via SMB1 and, yes, both suggest the workaround until a fix is available is to, er, STOP USING SMB1.

Microsoft emitted a patch in 2016 to deal with a remote code execution vulnerability in the 30-year-old protocol, just as the Shadow Brokers released a swath of NSA hacking tools that sliced through SMB1 like a laser cutter through butter. Redmond also began a concerted effort to persuade people to move onto something a little more modern and secure.


Latest Windows 10 Insider build pulls the trigger on crappy SMB1


Redmond upped the ante with the Fall Creators Update of Windows 10 (aka 1709) last year, which removed the protocol from the client operating system by default on fresh installations. Users upgrading their Home and Professional versions of Windows 10 would have the protocol quietly uninstalled if they didn't use it in 15 days.

However, holdouts for what Pyle referred to as "the West Coast hippy lifestyle," or connecting to services that require SMB1 (Microsoft’s end-of-lifed Windows Server 2003, for example,) could still switch the protocol back on if needed.

While Microsoft is to be applauded for trying to get customers to move on from the venerable (and vulnerable) SMB1, if users want to do the security equivalent of running naked down the street while singing a variety of ribald rugby songs, they should be allowed to do so unless told clearly that this sort of thing just isn't going to be tolerated any more.

On a positive note, while being massively inconvenient for some customers, and another indication that 1803 suffered somewhat in the quality department, the bug has had the effect of forcing users who can move on from SMB1 to do so. Other customers who are not so lucky will be taking a long, hard look at their options, because time is running short for SMB1. ®

Similar topics

Other stories you might like

  • Despite global uncertainty, $500m hit doesn't rattle Nvidia execs
    CEO acknowledges impact of war, pandemic but says fundamentals ‘are really good’

    Nvidia is expecting a $500 million hit to its global datacenter and consumer business in the second quarter due to COVID lockdowns in China and Russia's invasion of Ukraine. Despite those and other macroeconomic concerns, executives are still optimistic about future prospects.

    "The full impact and duration of the war in Ukraine and COVID lockdowns in China is difficult to predict. However, the impact of our technology and our market opportunities remain unchanged," said Jensen Huang, Nvidia's CEO and co-founder, during the company's first-quarter earnings call.

    Those two statements might sound a little contradictory, including to some investors, particularly following the stock selloff yesterday after concerns over Russia and China prompted Nvidia to issue lower-than-expected guidance for second-quarter revenue.

    Continue reading
  • Another AI supercomputer from HPE: Champollion lands in France
    That's the second in a week following similar system in Munich also aimed at researchers

    HPE is lifting the lid on a new AI supercomputer – the second this week – aimed at building and training larger machine learning models to underpin research.

    Based at HPE's Center of Excellence in Grenoble, France, the new supercomputer is to be named Champollion after the French scholar who made advances in deciphering Egyptian hieroglyphs in the 19th century. It was built in partnership with Nvidia using AMD-based Apollo computer nodes fitted with Nvidia's A100 GPUs.

    Champollion brings together HPC and purpose-built AI technologies to train machine learning models at scale and unlock results faster, HPE said. HPE already provides HPC and AI resources from its Grenoble facilities for customers, and the broader research community to access, and said it plans to provide access to Champollion for scientists and engineers globally to accelerate testing of their AI models and research.

    Continue reading
  • Workday nearly doubles losses as waves of deals pushed back
    Figures disappoint analysts as SaaSy HR and finance application vendor navigates economic uncertainty

    HR and finance application vendor Workday's CEO, Aneel Bhusri, confirmed deal wins expected for the three-month period ending April 30 were being pushed back until later in 2022.

    The SaaS company boss was speaking as Workday recorded an operating loss of $72.8 million in its first quarter [PDF] of fiscal '23, nearly double the $38.3 million loss recorded for the same period a year earlier. Workday also saw revenue increase to $1.43 billion in the period, up 22 percent year-on-year.

    However, the company increased its revenue guidance for the full financial year. It said revenues would be between $5.537 billion and $5.557 billion, an increase of 22 percent on earlier estimates.

    Continue reading

Biting the hand that feeds IT © 1998–2022