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Attachments folder does not open as a mapped drive RRS feed

  • Question

  • Onpremises Sharepoint 2013

    One of our users has a large list using InfoPath forms. Attaching files to a list item creates a sub folder in the Attachments folder having the list item ID and attached items go in that folder. One person creates the list items and another person adds attachments to the list item.

    If a drive letter is mapped to the URL, the Attachment folder won't open and a message says the disk is corrupted. For other sites and lists there is no problem opening the Attachments folder. Only this list has a problem. By opening an Attachments folder it's possible to create sub folders manually having the appropriate item ID and put files in the sub folder, saving a lot of time. In this case the Attachments folder won't open.

    Recreating the list may solve the issue, but the list has 10,000 items and copying with Metalogix is pitifully slow.

    What can be done to make the Attachments folder work with Windows Explorer?


    • Edited by dmcdivitt Monday, December 2, 2019 5:50 PM
    Monday, December 2, 2019 5:42 PM

Answers

  • No resolution to this issue seems possible except copy the list and begin using the copy. When copied the Attachments folder copies, too. Unfortunately, with many list items copying takes a long, long time.
    • Marked as answer by dmcdivitt Friday, December 6, 2019 6:11 PM
    Friday, December 6, 2019 6:11 PM

All replies

  • Hi,

    I would like to confirm a few things with you.

    Per my understanding, you have custom InfoPath forms that create subfolders in a document library and save the attachments to items in it. When you map the document library attachment folder to a local drive and try to open it, one specific subfolder for a list is corrupted but the others work well.

    If that’s the scenario, can you open the attachment folder by clicking “Open with Explorer” directly from the library? Do all lists create subfolders in the same library?

    Since it is a single-case issue, I suggest you remove the mapping drive and then recreate it to see the result.

    Also, check the system Event Viewer or ULS logs for potential error message.

    Here’s your reference.

    SharePoint logging and troubleshooting using ULSViewer.

    https://blogs.technet.microsoft.com/fesiro/2013/11/11/sharepoint-logging-and-troubleshooting-using-ulsviewer/

    Best regards,

    Chelsea Wu


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    Tuesday, December 3, 2019 6:22 AM
  • Thanks Chelsea. The issue occurs on any machine attempting to open the specific folder. The issue does not happen with any other folder or any other Attachments folders for other lists. I am not able to view Sharepoint logs. Why would Sharepoint serve a folder to Windows Explorer and make Windows Explorer think it is corrupted? Very strange.

    I read the following regarding corrupted folders where there was an orphan:  https://social.technet.microsoft.com/Forums/sharepoint/en-US/3ce47e52-22df-44e9-af02-ea18bd721645/corruption-in-folder-inside-of-shared-library-in-sharepoint-2010?forum=sharepointadminprevious

    C
    an that be it? I can't run the commands but possibly someone else can.
    Tuesday, December 3, 2019 2:56 PM
  • Hi,

    Speaking outside of SharePoint, the issue usually happens when the location of the folder is not available or when you are trying to open a storage device on Windows PC. It can be caused by bad sectors, virus infection or file system corruption.

    I cannot identify what might have caused this folder to corrupt unless there is detailed error message from Event Viewer or ULS logs.

    You can contact the Administrator to run the PowerShell commands to see if the folder is an orphaned object in Content Database by all means. It won’t influence the server performance.

    In addition, if the content database contains orphaned object, it usually triggers an error message from SharePoint Health Analyzer rule that states “Content databases contain orphaned items”. You can also contact the Administrator to check SharePoint farm status via Central Administration > Monitoring > Review problems and solutions.

    Best regards,

    Chelsea Wu


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    SharePoint Server 2019 has been released, you can click here to download it.
    Click here to learn new features. Visit the dedicated forum to share, explore and talk to experts about SharePoint Server 2019.

    Wednesday, December 4, 2019 2:11 AM
  • Hi,

    Please remember to update this thread if you have any progress.

    Thank you for your understanding.

    Best regards,

    Chelsea Wu 

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    SharePoint Server 2019 has been released, you can click here to download it.
    Click here to learn new features. Visit the dedicated forum to share, explore and talk to experts about SharePoint Server 2019.

    Friday, December 6, 2019 1:25 AM
  • No resolution to this issue seems possible except copy the list and begin using the copy. When copied the Attachments folder copies, too. Unfortunately, with many list items copying takes a long, long time.
    • Marked as answer by dmcdivitt Friday, December 6, 2019 6:11 PM
    Friday, December 6, 2019 6:11 PM
  • Hi, 

    Congratulations on solving this issue and thanks for marking the answer for this thread. It will benefit others who meet similar issues in this forum. 

    Here I will provide a summary of this post for your information.

    [Attachments folder does not open as a mapped drive - Summary]

    Issue Symptom 
    ====================
    Unable to open attachment folder in mapped drive showing error message: disk is corrupted

    Environment
    ====================
    SharePoint 2013

    Solution
    ====================
    Refer to dmcdivitt’s reply, the solution is:

    Manually copy the list along with attachment folders and use the copy instead.

    Best regards,

    Chelsea Wu


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    SharePoint Server 2019 has been released, you can click here to download it.
    Click here to learn new features. Visit the dedicated forum to share, explore and talk to experts about SharePoint Server 2019.

    Monday, December 9, 2019 7:50 AM