microsoft.photos.exe is a program which is probably legit. So, if microsoft.photos.exe is on your computer, it is probably ok, and will NOT be a cause for concern. Even if your PC is clean, we still advise you to purchase a good antivirus with a good detection rate, in order to defend your system against viruses and malware.
Usually, the default filename and path where the application is stored is
C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2017.18062.12990.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe.
The MD5 fingerprint for this executable is eefe354a36a690a0d1eda8490a0a9c69.
This application is NOT registered as a Windows service. This is good.
This program uses the net to communicate. Today this is ok. For example, most of the apps on your computer check for updates. In order to do this, Internet communications are necessary.
64-bit code has been detected. This exe can use the full power of a modern computer cpu.
microsoft.photos.exe appears to have visible windows. This means it doesn't work in some kind of stealth mode. Its operation is clearly shown to the user.
The digital certificate is missing from this program. The maker did not bother to sign it. This is probably bad.
This program does NOT have an uninstall command stored in registry.