Disabling File-Type Warnings Close the program you are using to open the file that gives you the "Always ask before opening this type of file" message, if it's currently running.

Get a more generic solution to identifying unknown or unrecognized file types & extensions with these free tools for Windows 11/10 computer.

When a file extension is not associated with a program, however, you are prompted by a "How do you want to open this type of file" or "Windows can't open this file" dialog when you try to open it.

If PowerPoint says that it can't open or read this type of presentation file, then use these proven fixes to resolve the issue once and for all.

If File Explorer isn't responding on your Windows machine, it can lead to headaches. Here are some solutions that might resolve the issue.

Need to use third-party programs to open files on your PC? Here's how to change file associations in Windows 10 and choose which apps open which file types.

On both Windows 10 and 11 PCs, Microsoft Photos is the default app for opening JPG files. So, if there's a problem with this app, it may fail to open any JPG files.

Exact error that usually appears is “The action can’t be completed because the file is open in COM surrogate”. The error message prompts you to close the file and then try again.

If you can't open a file on your computer, don't give up right away. These tricks will give you a fighting chance of accessing or recovering its contents.

When files on a hard drive were originating from a MAC device and then moved to a Windows machine, the notice “Can’t read from source file or disk” appears.