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This error dialog simply tells you Windows can not start Photo Gallery because
- the disk space may be insufficient
- some critical files are missing.
1: Check that you have enough free space on your hard drive, download Live Photo Gallery once more and install it. If the error reoccurs, the issue was not insufficient space
2: This means some important Windows system files are missing. Open command prompt as an administrator and run the command sfc /scannow
. It checks the system files on your computer and repairs / reinstalls them when needed.