Solving "The File Format Is Invalid or Unsupported" Error with PowerISO

Are you getting an “invalid or unsupported file format” error message while opening an ISO file in PowerISO? If so, you may be feeling frustrated and confused. You don’t have to be!

In this guide, we’ll explain the possible causes of this error and the steps to fix this issue. Let’s get started!

What Causes This Error?

This error usually occurs due to one of the following reasons:

  • The selected file is not an ISO Disk Image
  • You may not have the administrative right to access the file/disk
  • The disk image may be corrupted
  • The disk image may be protected with a password

How To Fix This Error

Here are the steps you can take to fix this error:

  1. Check File Type: Ensure that the file you’re trying to open is an ISO disk image. PowerISO only opens ISO files.
  2. Try Alternate Tools: Try different tools such as WinRAR and IsoBuster to open the ISO file.
  3. Re-Download File: If the file is corrupted, try re-downloading the file.
  4. Run As Administrator: Make sure that you are running the program as an administrator.
  5. Check For Password: Check if your file is protected with a password. If it is, enter the correct password to open the file.


Q: What is PowerISO?

PowerISO is a powerful CD/DVD/BD image processing and file compression tool, which allows you to create, resize, convert, mount, and encrypt ISO files.

Q: What type of files can PowerISO open?

PowerISO can open a variety of CD/DVD/BD image files, including ISO, BIN, NRG, CDI, DAA, and UIF.

Q: What is ISO file?

ISO stands for International Organization for Standardization. It’s an archive format for storing multiple files on a single file. ISO files are often used for CD/DVD backups and can be opened with many programs.

Q: How can I create an ISO file?

You can use PowerISO to create an ISO file from any data source, including CDs, DVDs, Blu-ray discs, physical drives, or even from image files.

Q: How do I convert an ISO file?

With PowerISO, you can convert an ISO file to a different format, such as BIN, NRG, MDF, etc. You can also choose to compress the file in gzip or bzip2 or encrypt it with a password.

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