Some Windows users 10 you may find that TWINUI is suggested by default when opening any file from a browser, a link with an email address and in some other situations. There may be other references to this element: as an example, application error messages – “See Microsoft-Windows-TWinUI / Operational log for more information” – or when you can't set anything other than TWinUI as the default program.
This tutorial details what is TWINUI in Windows 10 and how to correct errors that may be associated with this element of the system.
TWINUI – What is it
TWinUI is a Windows user interface for tablets that is present in Windows 10 and Windows 8. In reality, it's not an app, but rather an interface through which apps and programs can run UWP apps (windows store apps 10).
As an example, if you click a link to that file in a browser (como Firefox) which does not have a built-in PDF viewer (assuming you have Edge installed by default on your system for PDF, as usually happens right after Windows installation 10), a dialog box will open offering to open it with TWINUI.
In the case described, what is implied is the release of edge (In other words, the store app) assigned to PDF files, but the dialog only shows the interface name, not the app itself, and that's fine.
An equivalent situation can occur when opening images (in the Photos app), videos (in Movies and TV), links de email (assigned by default to the Mail app, etc.
In summary, TWINUI is a library that enables other applications (and Windows itself 10) work with UWP apps, most of the time it's about throwing them (even though the library has other functions), In other words, a kind of launcher for them. . And it's not something that needs to be uninstalled.
Fix possible problems with TWINUI
Windows users 10 occasionally experience issues related to TWINUI in particular:
- cannot award (set as default) no application other than TWINUI (Y, sometimes, TWINUI may appear as the default app for all file types).
- Problems starting or running applications and a message to find information in Microsoft-Windows-TWinUI / operating record
For the first situation, if there are problems with file associations, the following methods are possible to solve the problem:
- Use Windows restore points 10 to a date before the problem, if enabled.
- Restoring the Windows Registry 10.
- Try to install the default app using the following path: Setting – Applications – Default apps – Set defaults for the app. After, select the desired application and compare it with the required supported file types.
In the second situation, if there are errors in the application and the operating log is returned from Microsoft-Windows-TWinUI, try following the steps in the Windows Apps instructions 10 that don't work, generally help (unless it is the application itself with some kind of errors, which also happens).
If you have any other problems related to TWINUI, describe the situation in detail in the comments, I will try to help you.
Appendix: twinui.pcshell.dll and twinui.appcore errors.dll can be caused by third-party software or corrupt system files (see How to Verify the Integrity of Windows System Files 10). As usual, the easiest way to fix them (not counting restore points) is to restart Windows 10 (you can also do this with data preservation).
