By Dervish / Last update January 4, 2022

If your Windows 10 cannot open the JPG file, you can refer to the methods provided in this article to solve it.

Sometimes, when your Windows 10 opens a JPG file, an error message is displayed: "This application is not started." Problems with old Windows systems, damaged system files, or external applications may prevent you from opening JPG files. For whatever reason, our assistant will help you solve this problem.

1. Copy the JPG file and rename it

Due to the wrong file extension, you may not be able to open the JPG file. In this case, renaming the file can solve the problem.

Rename and make sure to add the .jpg extension. Windows will display a message stating that the file may not be available, so be sure to copy the original file to another location before editing its name.

To be on the safe side, please try a single photo first, and then use it in batches after success.

2. Change file size

Assuming you have a camera or phone suitable for taking beautiful photos, you might like to take some clear photos. The main problem is that Windows 10 may not be able to choose to use its default applications to open these memory-intensive files. To fix it, you can reduce the size of JPG through some software.

3. Update the Microsoft Photos app

On Windows PCs, Microsoft Photos is the default application for opening JPG documents. If the application is outdated or damaged, it will prompt such problems, and the failure to open the JPG file may be one of them. Updating Windows Photos should fix such errors.

Open the Microsoft Store application, click the three-dot menu, and select Download and Update. Then, at this time, check if the "Photos" application is recorded under "Available Updates."

4. Change the default image viewer application

If you have installed a third-party image viewer on your computer, it may be that the third-party software conflicts with the Windows default program and prevents you from opening the JPG file. To solve this problem, you can change the default image viewer.

1. Open Windows Settings.

2. Find Default Apps in Apps.

3. Click the photo viewer under the default application, and then select a photo from the list.


5. Repair the Microsoft Photos app

Due to missing or degraded documents, Microsoft Photos may have stopped working properly. In this case, you should repair the application. The advantage of this is that Windows will check the Microsoft Photo Logging and registry sections when trying to repair it, but it will retain the current settings of the application.

Follow the methods below to repair Microsoft Photos:

1. Press Win + I to bring up the setting menu.

2. Find the application and function in the application.

3. Select the picture viewer and find the advanced options.

4. Look down and click Repair.

Assuming this does not solve the problem, you can also reset the application. Complete the instructions above and choose Reset. This will delete the application's information from your PC. If you decide to reset the app, you should reintegrate OneDrive to adjust your photos.

6. Run SFC Scan

Damaged system files and settings may prevent your computer from opening JPG files. But you can execute SFC in CMD to fix the problem. The specific steps are:

Run CMD as an administrator, type sfc/scannow, and press Enter to wait for the scan to end.

After the scan is complete, restart your PC and check if the issue is resolved.


Do you now know how to open JPG files in Windows 10? There are six methods for you to use, please troubleshoot the problem according to the one that suits you.