Windows 10: File Explorer is open on startup inside Taskbar with no preview

I have this weird thing happening sometimes when I boot my Windows laptop. The File Explorer icon is highlighted in the Taskbar and if I move my cursor over there it shows the following preview. On clicking the preview, nothing happens. The only thing I can do is close it.I am worried as is this due to some kind of malware? And, this happens only sometimes and the rest of the time it's not open on startup.

:)

 

preview/details pane in explorer

Hi,

Setting the Preview pane to show or hide in File Explorer will apply to all folders. If you wish to hide the Preview pane in File Explorer, we suggest that you follow the steps below:

• Open File Explorer.
• Tap on View tab.
• Click Preview Pane to view/hide it.

We would appreciate it if you could get back to us and provide us your feedback.

 

"This file can't be previewed" problem in explorer

Hi Deborah,

For us to provide an accurate resolution, kindly elaborate the issue by answering the questions listed below:

• Since when have you been experiencing this issue?
• Were there any changes on your PC before this happened like software or updates installed?

For initial troubleshooting, we suggest that you follow the steps listed below:

• Open File Explorer.
• Access this link
  
  C:\Users\USERNAME\AppData\Local\Microsoft\Windows\Explorer
• Delete all the files.
• After deleting the files kindly try and see if there's a thumbnail preview of your files.

We're looking forward to your response.

 

Delete and Cut Files with Preview Pane Open

Hi,

Thank you for posting your query in Microsoft Community.

I understand your concern and will assist you to resolve this issue.

• Have you tried to delete the pdf file in preview panel?
• What exactly happens when try to delete the pdf file?

I suggest you to follow the steps below and check if it helps.

• 
  Open File Explorer.
  
• 
  Select View and click on preview panel.
  
• 
  Select the pdf file.
  
• 
  At the right corner you will be able to see preview panel.
  
• 
  You can right click on it and delete the files.
  

Hope this helps. If the issue remains unresolved, please get back to us and we would be happy to help.