This XML file does not appear to have any style information associated with it. The document tree is shown below.

Hi @hyo jin jeong,

Thank you for reaching out to Microsoft Q&A. I understand how frustrating this must be, and I’m here to help resolve it.

The message you're seeing typically occurs when an XML file is opened in a web browser without an associated stylesheet, causing the raw document tree to display. Based on the file content you shared (<root><floatings/></root>), it seems a program or process on your computer is generating this file and attempting to open it automatically at startup.

Here are some steps to help identify and stop this issue:

1. Locate the XML File:
   • Check the browser window or address bar to see if it shows the file’s location (e.g., C:\Users\YourName\...). If possible, search your computer for files containing <floatings> using File Explorer.
   • Note the file’s name and path, as this can help identify the program responsible.
2. Check Startup Programs:
   • Open Task Manager (Ctrl + Shift + Esc), go to the "Startup" tab, and review the programs listed. Disable any unfamiliar or unnecessary ones by right-clicking and selecting "Disable."
   • Alternatively, type msconfig in the Windows search bar and check the "Startup" or "Services" tabs for anything related.
3. Identify the Program:
   • If you recently installed or updated software before this started, it might be related. Let us know any programs you suspect, and we can investigate further.
   • If the file is opened in a browser, check if a specific application is triggering it.
4. Additional Checks:
   • Run a scan with an antivirus program (e.g., Windows Defender) to rule out malware.
   • If you find the file, try renaming it (e.g., add .bak to the file name) to see if the issue stops, but be cautious as this may affect the related application.

To provide more tailored assistance, could you share:

• The full file path or name of the XML file (if visible in the browser).
• Any recently installed software or changes made before the issue started.
• The browser or program displaying the file.

Please let me know these details, and I’ll guide you through the next steps to resolve this. If you prefer, we can also arrange a support session to investigate further.