Why HEIC files won't open on Windows (and how to fix it)

When the iPhone camera is set to High Efficiency, photos are stored in the HEIF format and commonly use the .heic filename extension. HEIF compresses more efficiently than JPEG, but a Windows app that lacks the required format support may not display it.

Microsoft documents cases where Photos asks for an extension before it can use HEIF files. Older Windows 10 machines and managed office PCs are especially likely to show messages such as "This file can't be displayed" or "You need an extension to use this file."

In File Explorer, first confirm that the name ends in .heic or .heif and that the file size is not zero bytes. If the same file opens on the iPhone or in a current browser but not in Windows Photos, format support is the likely cause.

If it also fails on the iPhone, is zero bytes, or came from an interrupted transfer, send the original again because conversion cannot repair missing data. Renaming photo.heic to photo.jpg does not convert the bytes inside the file and will not solve the problem.

If you just need to open or use the photo now, converting HEIC to JPG is the most reliable fix. JPG opens on virtually every device and app, so once converted, the compatibility problem disappears entirely.

Our HEIC to JPG converter works by simply dropping the file into your browser. Processing happens locally — your photo is never uploaded to a server — so it is safe to use even for personal photos or work documents. Batch conversion of multiple files is supported too.

If you receive HEIC files regularly and converting every time is a hassle, you can install the "HEIF Image Extensions" from the Microsoft Store. This lets the Windows Photos app open HEIC files directly.

Note that some setups also require the paid "HEVC Video Extensions," and corporate PCs often block Store installs. When you need certainty, converting to JPG remains the safer route.

To stop new photos from being saved as HEIC, go to Settings → Camera → Formats on the iPhone and choose "Most Compatible." Future photos will be saved as JPG.

The trade-off is larger files and faster storage consumption on the phone. Keeping HEIC for storage and converting to JPG only when sharing is usually the better balance.

Apple notes that some sharing methods, including email or Messages, may automatically send a more compatible format such as JPEG depending on the recipient's support. The Photos transfer setting can also control whether media is converted while importing to a PC; its location varies by iOS version.

Cloud drives and file-sharing workflows may keep the original HEIC. If a submission form explicitly accepts JPEG or PNG, converting before sending is more reliable than depending on the transfer path to make the decision.

Converting HEIC to JPG keeps the visible quality essentially the same, but the JPG file will usually be larger than the original HEIC — that is normal, since JPG compresses less efficiently. If size matters, run the result through a JPG compressor afterward.

For important photos you may edit later, keep the original HEIC as your master copy. HEIC preserves more quality per megabyte; use JPG as the distribution copy.

The HEIC problem is purely about compatibility, so converting to JPG always resolves it. Use a browser converter for urgent cases, the Windows extension if you receive HEIC often, or change the iPhone setting to fix it at the source.

Filewisp offers both HEIC to JPG and HEIC to PNG conversion for free, with no installation and fully in-browser processing.