Error code OX80070021 RRS feed

  • Question

  • Hi

    Running win 10 on a 64 bit machine, attempting to save USERS FILE TO an external disc: I get the message : "error 0x80070021 the process cannot copy the file as another process has locked a portion of the file." ?

    Monday, December 4, 2017 11:00 AM

All replies

  • Hi,

    How did you save file to an external drive (through file\save as or others)?

    What's the format of the file (Outlook, word or others)?

    Is it a share file or local file?

    Please check if you could save as other file to external drive.

    Make sure you have read and edit privilege about the file, try to  save the file and close it. Then copy or send to external drive.

    If your issue occurred on Outlook, please check if the link which recorded a similar issue is useful for you. pst-file / ost-file in use.

    If the issue persists, please ask for help from Outlook support as they have more resource about this issue.

    NOTE: This response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you. Microsoft does not control these sites and has not tested any software or information found on these sites.



    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact

    Tuesday, December 5, 2017 5:52 AM
  • Simples. Lot of confusion here.

    1. Shut down MS Outlook.

    2. Navigate to This PC > Local Disc (C:) > Users > *Name of your computer" > AppData > Local > Microsoft > Outlook

    3. Up willl come your list of email boxes on Outlook (Shown as Outlook Data Files)

    (Another way is to open Outlook and 'Open File Location' from LH click on email box list - then SHUT DOWN Outlook) (*File locations will still show in pop up box of file locations) 

    4. LH Click mouse to 'COPY' file.

    5. Paste it to the folder or place on remote drive or whatever you are saving it on. 

    Voila. All done. (It worked just fine for me on W10 version at 11 Nov 2019...) 




    Tuesday, November 12, 2019 2:25 PM
  • 0x80070021 - The process cannot access the file because another process has locked a portion of the file.



    1) Place the computer in each safe mode and clean boot:

    2) See if you can copy and paste to the external drive


    Please remember to vote and to mark the replies as answers if they help.

    Tuesday, November 12, 2019 4:28 PM