I can bet a $100 dollars that as an advance Computer User, some of ur images get corrupt.
When you try to open them, you get an error saying "No Preview Available". Like it is displayed on the image below.

That sure means that the image is corrupt. Some time ago, Hayprof on this forum sent me an image through an Instant messenger and when I got it - I noticed it was corrupt. It may be caused by Bad sectors on your hard drive. It also happens when you recover deleted images from your computer, memory stick or Digital Camera.

Out of curiosity, I decided to find an end solution to this problem.

After much searching, it didn't seem like there were many tools or tips and tricks to repair a corrupted image file. There's only one software I found called PixRecovery which is data recovery program for damaged images. It supports GIF, TIFF and JPEG formats. It is sort of like a picture repair utility.

Sorry its shareware, but there is a crack for it which I intend to search for and upload for you!

Meanwhile, you can download the software here . .
Its just 900KB. Remeber its a demo

The SysCurve Photo Repair Tool is a robust software designed to repair corrupted photos in formats such as JPEG, TIFF, RAW, and more. It enables batch processing for multiple files and supports a wide range of storage devices. The tool is user-friendly, requiring no technical skills, and is compatible with all versions of Windows OS. It ensures the integrity of repaired photos and allows previewing of images before saving. For more details, please visit: https://www.syscurve.com/photo-repair-tool.html