In WIN11, I downloaded a file and I can't delete it because of this file's name has an invaild symbol. How to delete it?

Try open the Command prompt and then use the rename command. You may try type the following command:

RENAME [drive:][path]filename1 filename2.

where you have to enter the path number of the file and the name of the invalid file as filename1 and then second one add another name and see if it works. If not, tell us what is the error message.

Hi there,

You can't delete a file if the file uses an Access Control List (ACL). To resolve this issue, change the permissions on the file. You may have to take ownership of the files to change the permissions.

You can also delete a file if the file is being used. To resolve this issue, determine the process that has the open handle, and then close that process.

You can't delete a file or a folder on an NTFS file system volume
https://learn.microsoft.com/en-US/troubleshoot/windows-server/backup-and-storage/cannot-delete-file-folder-on-ntfs-file-system

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Simply download this tiny utility to shoot any file, folder, long name file, PDF file, video file, etc.

https://fileassassin.en.softonic.com/?ex=RAMP-2046.2

Steps:

1. Open Command Prompt.
2. Right-click on the file you want to delete and select the "Copy as Path" option.
3. Type in Command Prompt the below command:

   del /f <Paste path here>