1.    23 Feb 2017 #1
    Join Date : Feb 2017
    Posts : 1
    Windows 10 Pro

    file explorer disappears

    Goodmorning everyone,

    I have a problem at the office and I hope you can help me fix it or tell me it's a windows 10 bug or something
    We have several users that have documents on a network share with a very long UNC pad.
    When they open the document, the document opens without any problem, but in the background the file explorer just disappears without an error or anything.
    And when they want to open a new file explorer, it opens and closes immediately, I think because the long UNC path is in the quick access.
    When I clear the quick access cache, it works fine again, untill they open a file on that network share again.
    Does anyone else know something about this problem?
    Hope you can help me.
      My ComputerSystem Spec
  2.    23 Feb 2017 #2
    Join Date : Dec 2013
    Portsmouth Hampshire
    Posts : 1,829
    Windows 10 x86 14383 Insider Pro and Core 10240

    Long paths are still a problem. It's documented, so not a bug so much as a limitation.

    However, long UNC paths are your responsibility, or that of your sysadmin.

    On the server, you could use a short alias for the long UNC path perhaps? If you have:


    create a new share on the folder \legal with a short name legdoc thus becomes:


    when accessed across the network

    Use an even shorter short alias for the UNC path?

    On the user machines:

    get the IPv4 address of \\Verybigfileservername

    from command prompt admin>

    ping verybigfileservername -4

    copy the IPv4 address - e.g.

    In the windows\system32\drivers\etc\hosts file with notepad, append your server IPv4address with a short alias (e.g. Srv1) after localhost Srv1

    and save the hosts file

    now your UNC path becomes


    That's a somewhat flippant example - instead you may wish to replace Srv1 with a more meaningful short name to represent the path.
      My ComputersSystem Spec


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