Windows 10: My file's extensions changed to GUJD due to a malware

Discus and support My file's extensions changed to GUJD due to a malware in AntiVirus, Firewalls and System Security to solve the problem; All my files got extension GUJD. help need[Original Title: Virus]... Discussion in 'AntiVirus, Firewalls and System Security' started by DraganKrstic, Jul 20, 2021.

  1. DRAGANKRSTIC
    DraganKrstic Win User

    My file's extensions changed to GUJD due to a malware


    All my files got extension GUJD. help need[Original Title: Virus]

    :)
     
    DraganKrstic, Jul 20, 2021
    #1
  2. MICHAEL GALL
    Michael Gall Win User

    File extension *.docx

    Hi Randy,

    To change the file extension when saving a document in Word 2013, you may follow the steps below:

    • Click on File; then, select Options from the list.
    • In the Word Options window, choose Save.
    • Under Save files in this format, select *.doc from the list.
    • Hit OK button to confirm and save the changes.

    If ever your Word 2013 application is not recognizing the changes you have made, you may restart the application; however, if the issue still persists, we suggest that you repair it. To do this, see this
    link.

    We would appreciate it if you could get back to us and provide us your feedback.
     
    Michael Gall, Jul 20, 2021
    #2
  3. PAPERSAVVY
    PaperSavvy Win User
    Remove (not change) file extension association

    I mistakenly associated a file extension with .pdf. I've found many instructions on how to change (swap) the file associate from one extension to the other, but how do you remove the association completely and return it to "Choose a default" ??

    This user was very helpful (How to UNSET/REMOVE a default app for file type).

    I took the suggested steps above and it removed the association but didn't return it to "Choose a default" ... this has caused a thumbnail app to work for every file EXCEPT the ones i mistakenly associated, then did the work around on. This is affecting
    productivity as I'm working with over 1,000 files (and growing). Since 145 people said they had the same question, please Microsoft, can you answer or solve this problem? Please help. Thanks.
     
    PaperSavvy, Jul 20, 2021
    #3
  4. NYIMA YONTEN
    Nyima Yonten Win User

    My file's extensions changed to GUJD due to a malware

    Can a file extension(.flv) be added to Default Program Associations.

    Hi Fred,



    Thank you for posting your query on Microsoft Community.



    I understand that you are facing issues associating a particular file extension with a program on Windows 10. I apologize for the inconvenience caused to you.

    To assist you better, please provide the information:

    When you say that "Default Program Associations", are you referring to the list of default applications in default programs settings?



    I want you to be informed that all the file extensions is listed in the default program settings which is displayed under
    Associate a file type or protocol with a program.



    In default program list, all the programs or application will be listed. Then we can select each program as default program for opening a particular file.

    I suggest you to refer to the below steps to make default program for a particular file extension.

    1. Type "Control Panel" without the quotes in search box and click on it.

    2. Click on Programs.

    3. Then click on Default Programs and click on Choose Default for this Programs.

    4. Select .flv file from the list.

    Also you can try other steps to associate the a particular extenstion with the program.

    1. Type "Control Panel" without the quotes in search box and click on it.

    2. Click on Programs.

    3. Then click on Associate a file type or protocol with a program
    and search for .flv extension from the list.

    4. Click on .flv and then click on Change Program.



    Reply to us with the information, so that we can assist you better.

    Let us know if you need any further assistance on Windows related issues and we will be glad to help.
     
    Nyima Yonten, Jul 20, 2021
    #4
Thema:

My file's extensions changed to GUJD due to a malware

Loading...

  1. My file's extensions changed to GUJD due to a malware - Similar Threads - file's extensions changed

  2. Ransomware gujd Decryption

    in AntiVirus, Firewalls and System Security
    Ransomware gujd Decryption: Hi .. My laptop was encrypted with ransomeware dujd virus. i attaching file details please help me solve this issue. thank you https://answers.microsoft.com/en-us/protect/forum/all/ransomware-gujd-decryption/0ca25b93-9bf5-404b-8785-cc3014a0f595

  3. .gujd isuue

    in Windows 10 Network and Sharing
    .gujd isuue: Its Urgent! I dont know but somehow all my personal files have got an .gujd extension and none of them are opening. Please Help Me. https://answers.microsoft.com/en-us/windows/forum/all/gujd-isuue/5536a7be-935b-427a-b50a-ee34793fe581

  4. wSpeedAsk Browser Extension - Malware

    in AntiVirus, Firewalls and System Security
    wSpeedAsk Browser Extension - Malware: Split from this thread.Hi,I am going through the same problem as you guys.There is an extension named 'wSpeedAsk' and it reinstalls itself even after getting removed from all the browsers edge, brave, chrome.It is loaded from 'C:\ProgramData\Cljnhuz' and this folder too comes...

  5. Changing a file's extension: disabling the "If you change a file name extension, the file...

    in Windows 10 Customization
    Changing a file's extension: disabling the "If you change a file name extension, the file...: Microsoft Windows [Version 10.0.19042.867] is there a registry key to get rid of it now ? https://answers.microsoft.com/en-us/windows/forum/all/changing-a-files-extension-disabling-the-if-you/dc219745-91fb-4c6b-9821-76fa22cf20c9

  6. File Extension Changes

    in Windows 10 Network and Sharing
    File Extension Changes: My wife tried to open an Excel file she attached to an email before she sent it to make sure it was the right one. That act then proceeded to try to open over 150 files. They were still scrolling across the top when the only thing I could figure out what to do was to sign...

  7. File extension changed

    in AntiVirus, Firewalls and System Security
    File extension changed: how can I recover my files that changed to .mado extension? is there any easy idea my all files are encrypted as .mado . How to decrypt ? https://answers.microsoft.com/en-us/protect/forum/all/file-extension-changed/5eb5c4f3-acce-4907-9e10-857faaec0e1c

  8. Change file extension for Notepad ++

    in Windows 10 Software and Apps
    Change file extension for Notepad ++: Ran multiple searches and hard to believe this hasn't been covered but ... I need to find 'Change Program' in the list of file extensions under Default Programs>"Associate a file type or protocol". Thank you. P.S. Also if the site's search can't find Notepad ++ (with or...

  9. Changing file extension of all files in the folder

    in Windows 10 Network and Sharing
    Changing file extension of all files in the folder: I don't know how to change extensions of all files in my folder. All files don't have any extension and I dont know how to do it with powershell. How do I change it so all of them have extensions?...

  10. How to change a file extension

    in Windows 10 Network and Sharing
    How to change a file extension: How do I change a file extension or file type in windows 10? https://answers.microsoft.com/en-us/windows/forum/all/how-to-change-a-file-extension/f430aae6-5a42-4b76-b2f4-f45a21f6c8a8"