Windows Photo Gallery is capable of displaying six picture file types and playing four video types (if Windows Movie Maker is installed). That is a reasonable compatibility number, compared to other programs limited to one or two formats. Many photo formats exist and more are created as developers improve on existing technology. Keep Photo Gallery updated to make sure it is capable of handling newer formats.
Click on the Windows orb logo on the taskbar at the bottom of the desktop to show the Start menu. Click on the "All Programs" link, then select the "Windows Photo Gallery" icon to open the program.
Click on "File" to show the menu, then select "Options" to open a dialogue box.
Click on the "General" tab to bring it to the front of the dialogue box.
Click on the "Check for Updates" button, then wait while Windows checks Microsoft's update servers.
Read and follow the instructions to update "Windows Photo Gallery" until complete. If the PC has the most current version of the program, a dialogue will pop up saying "No update is available at this time."
To get automatic updates, click a check mark in the box next to "Tell me when updates to Photo Gallery are available" on the General tab.