What is the installed program "Windows Live Photo Common" on my Windows 8 computer? Why it is not visible in Control Panel?

"Windows Live Photo Common" is an installed program on Windows 8 system managed by Windows Installer.

You will not see "Windows Live Photo Common" listed on "uninstall or change a program" in Control Panel, because it is flagged as a hidden system component in the registry (SystemComponent=1).

Information related to "Windows Live Photo Common" installed program:

Name: Windows Live Photo Common
Publisher: Microsoft Corporation
Size: 5080 KB
Version: 16.4.3503.0728
System Component: 1
Identifying Number: {64DF7404-9D46-44AF-AFA1-A2F8D5648C2D}
Install Location: 
Install Source: C:\Program Files (x86)\Common Files\Windows Live\.cache\9cd734d51cdcc7e0f\
Install Date: 20121127
Local Package: C:\Windows\Installer\4f464.msi
Package Name: PhotoCommon.msi
Uninstall Command: MsiExec.exe /X{64DF7404-9D46-44AF-AFA1-A2F8D5648C2D}
Windows Installer: Yes

It is recommended to keep "Windows Live Photo Common" as an installed program.

⇒ "Windows Live SOXE" Installed Program on Windows 8

⇐ "Windows Live PIMT Platform" Installed Program on Windows 8

⇑ Hidden Installed Programs using Windows Installer on Windows 8

⇑⇑ Windows 8 Installed Programs