5 ms·

Missing from the list: Win 10 periodically resets the "default applications", completely ignoring previous user preferences. Starts opening PDF files with Edg

Missing from the list: Win 10 periodically resets the "default applications", completely ignoring previous user preferences. Starts opening PDF files with Edge (argh!) or TXT with Notepad (double argh!). Does anyone know how to prevent this?

justaman 7y ago
I'm not sure I've ever heard of anyone having this problem aside from that large server update a year or two ago and their "desktop experience". Can anyone tell me more?
- java-man 7y ago
  Literally today it opened a PDF file with Edge for me. And, of course, file association page does not have a searh box to help find .txt among hundreds of useless and unassigned extensions.
  - jodrellblank 7y ago
    See: https://devblogs.microsoft.com/oldnewthing/20170517-00/?p=96175 https://devblogs.microsoft.com/oldnewthing/20170517-00/?p=96... for an explanation. "A customer reported that each time they restart their Windows 10 PC, the file association for PDF documents keeps getting reset to the default, which is Microsoft Edge. [..]"
    - java-man 7y ago
      This is not a case of Program X messing with registry. This is the user explicitly setting Program X to be the default application. I guess there is no way (given the current registry design) to differentiate between the user modifying the registry and a program modifying the registry. Again, coming back to the original message - the case scenario is not that some program is changing the preferences. It the user changing the setting, and Win10 silently discarding the user input (after a reboot or some automated update).
- GrayShade 7y ago
  I see it on every large update (like 1909) or so.
- cma 7y ago
  Somehow it seems to do some braindead syncing when you set up a new device. When setting up a new laptop suddenly my desktop task bar switched sides to match the change on the laptop, and files stopped showing extensions (even though that wasn't touched yet on the laptop, the default is not to show them and that somehow seemed to carry over to my desktop).
- shakna 7y ago
  Well, last year [0][1] consumers weren't able to have changes to the defaults. Well, some apps would change, but others wouldn't. However, you can get the impression it happens more regularly because when individual default apps, like Photos, get updated (or if there is a problem in the registry) they may reset the association for the files they expect to handle. [0] https://wccftech.com/windows-10-bug-unable-apps-defaults/ https://wccftech.com/windows-10-bug-unable-apps-defaults/ [1] https://support.microsoft.com/en-us/help/4467682/windows-10-update-kb4467682 https://support.microsoft.com/en-us/help/4467682/windows-10-...
cpach 7y ago
I haven’t experienced that in a while (IIRC it was at least 1,5 years ago). E.g. W10 1903 has not done that to me. Does anyone here know if it’s possible for »mere mortals« to send in bug reports to the Windows team…? If so, you might want to do that. Or does that require going through some kind of intermediary?
- ragequitta 7y ago
  Look for feedback hub in your start menu.
  - cpach 7y ago
    Ok. But that’s not really like logging a support ticket, right?
pxeboot 7y ago
In order to prevent malware from hijacking popular file extensions, anytime an application "improperly" tries to set itself as a default app, it will revert to the Windows 10 default instead. If you are having issues with this, it's probably bring caused by a legacy app or script doing something in a way that is no longer allowed.
- cpach 7y ago
  Oh. That’s a bit subtle. Sounds like a good explanation though. Would be great if W10 logged this somewhere or in some other way gave the user a hint as to what is happening.
  - shakna 7y ago
    When that happens, you should get a notification that says something like: > An app default was reset > An app caused a problem with the default setting for .png files, so it was rest to Photos.
  - pxeboot 7y ago
    It does get logged and is viewable with the Event Viewer. Useful for sysadmins, but not end users.
- java-man 7y ago
  I might be wrong, of course, but the OS should respect the user preference. The OS must not, under any condition, override the user preference - especially, as you say, in case of "malware hijacking popular file extension".
  - jodrellblank 7y ago
    The reason Microsoft do this is to respect the user preferences[1]. When a program goes through the proper channels, Windows pops up the dialog which says "you have installed a new program which can handle {Foo} filetype, would you like to open it in the new program, or the one you were using?" When a program skips this user-respecting dialog, and edits the registry directly to take control of a file extension without user consent, Windows detects it and resets, to give control back to the user instead of letting random software take over. It's part of Raymond Chen's "What if two programs did this?[2]" and "I bet someone got a nice payrise for hijacking user file extensions" comments on his OldNewThing blog. [1] https://devblogs.microsoft.com/oldnewthing/20170517-00/?p=96175 https://devblogs.microsoft.com/oldnewthing/20170517-00/?p=96... [2] https://devblogs.microsoft.com/oldnewthing/20050607-00/?p=35413 https://devblogs.microsoft.com/oldnewthing/20050607-00/?p=35... [3] See also: https://devblogs.microsoft.com/oldnewthing/20190724-00/?p=102730 https://devblogs.microsoft.com/oldnewthing/20190724-00/?p=10...

justaman 7y ago

I'm not sure I've ever heard of anyone having this problem aside from that large server update a year or two ago and their "desktop experience". Can anyone tell me more?

java-man 7y ago
Literally today it opened a PDF file with Edge for me. And, of course, file association page does not have a searh box to help find .txt among hundreds of useless and unassigned extensions.
- jodrellblank 7y ago
  See: https://devblogs.microsoft.com/oldnewthing/20170517-00/?p=96175 https://devblogs.microsoft.com/oldnewthing/20170517-00/?p=96... for an explanation. "A customer reported that each time they restart their Windows 10 PC, the file association for PDF documents keeps getting reset to the default, which is Microsoft Edge. [..]"
  - java-man 7y ago
    This is not a case of Program X messing with registry. This is the user explicitly setting Program X to be the default application. I guess there is no way (given the current registry design) to differentiate between the user modifying the registry and a program modifying the registry. Again, coming back to the original message - the case scenario is not that some program is changing the preferences. It the user changing the setting, and Win10 silently discarding the user input (after a reboot or some automated update).
GrayShade 7y ago
I see it on every large update (like 1909) or so.
cma 7y ago
Somehow it seems to do some braindead syncing when you set up a new device. When setting up a new laptop suddenly my desktop task bar switched sides to match the change on the laptop, and files stopped showing extensions (even though that wasn't touched yet on the laptop, the default is not to show them and that somehow seemed to carry over to my desktop).
shakna 7y ago
Well, last year [0][1] consumers weren't able to have changes to the defaults. Well, some apps would change, but others wouldn't. However, you can get the impression it happens more regularly because when individual default apps, like Photos, get updated (or if there is a problem in the registry) they may reset the association for the files they expect to handle. [0] https://wccftech.com/windows-10-bug-unable-apps-defaults/ https://wccftech.com/windows-10-bug-unable-apps-defaults/ [1] https://support.microsoft.com/en-us/help/4467682/windows-10-update-kb4467682 https://support.microsoft.com/en-us/help/4467682/windows-10-...

cpach 7y ago

I haven’t experienced that in a while (IIRC it was at least 1,5 years ago). E.g. W10 1903 has not done that to me. Does anyone here know if it’s possible for »mere mortals« to send in bug reports to the Windows team…? If so, you might want to do that. Or does that require going through some kind of intermediary?

ragequitta 7y ago
Look for feedback hub in your start menu.
- cpach 7y ago
  Ok. But that’s not really like logging a support ticket, right?

pxeboot 7y ago

In order to prevent malware from hijacking popular file extensions, anytime an application "improperly" tries to set itself as a default app, it will revert to the Windows 10 default instead. If you are having issues with this, it's probably bring caused by a legacy app or script doing something in a way that is no longer allowed.

cpach 7y ago
Oh. That’s a bit subtle. Sounds like a good explanation though. Would be great if W10 logged this somewhere or in some other way gave the user a hint as to what is happening.
- shakna 7y ago
  When that happens, you should get a notification that says something like: > An app default was reset > An app caused a problem with the default setting for .png files, so it was rest to Photos.
- pxeboot 7y ago
  It does get logged and is viewable with the Event Viewer. Useful for sysadmins, but not end users.
java-man 7y ago
I might be wrong, of course, but the OS should respect the user preference. The OS must not, under any condition, override the user preference - especially, as you say, in case of "malware hijacking popular file extension".
- jodrellblank 7y ago
  The reason Microsoft do this is to respect the user preferences[1]. When a program goes through the proper channels, Windows pops up the dialog which says "you have installed a new program which can handle {Foo} filetype, would you like to open it in the new program, or the one you were using?" When a program skips this user-respecting dialog, and edits the registry directly to take control of a file extension without user consent, Windows detects it and resets, to give control back to the user instead of letting random software take over. It's part of Raymond Chen's "What if two programs did this?[2]" and "I bet someone got a nice payrise for hijacking user file extensions" comments on his OldNewThing blog. [1] https://devblogs.microsoft.com/oldnewthing/20170517-00/?p=96175 https://devblogs.microsoft.com/oldnewthing/20170517-00/?p=96... [2] https://devblogs.microsoft.com/oldnewthing/20050607-00/?p=35413 https://devblogs.microsoft.com/oldnewthing/20050607-00/?p=35... [3] See also: https://devblogs.microsoft.com/oldnewthing/20190724-00/?p=102730 https://devblogs.microsoft.com/oldnewthing/20190724-00/?p=10...