What is the installed program "Windows SDK Desktop Tools x86" on my Windows 7 computer? Why it is not visible in Control Panel?

"Windows SDK Desktop Tools x86" is an installed program on Windows 7 system managed by Windows Installer.

You will not see "Windows SDK Desktop Tools x86" 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 SDK Desktop Tools x86" installed program:

Name: Windows SDK Desktop Tools x86
Publisher: Microsoft Corporation
Size: 20216 KB
Version: 10.1.15063.137
System Component: Yes
Identifying Number: {5166DC8D-59BF-336E-2382-A6C585BAD36C}
Install Location: 
Install Source: C:\ProgramData\Package Cache\{5166DC8D-59BF-336E-2382-A6C585BAD36C}v10.1.15063.137\Installers\
Install Date: 20170729
Local Package: C:\windows\Installer\1f62a2e.msi
Package Name: Windows SDK Desktop Tools x86-x86_en-us.msi
Uninstall Command: MsiExec.exe /I{5166DC8D-59BF-336E-2382-A6C585BAD36C}
Windows Installer: Yes

It is recommended to keep "Windows SDK Desktop Tools x86" as an installed program.

⇒ "Windows SDK DirectX x64 Remote" Installed Program on Windows 7

⇐ "Windows SDK Desktop Tools x64" Installed Program on Windows 7

⇑ Hidden Installed Programs using Windows Installer on Windows 7

⇑⇑ Windows 7 Installed Programs