microsoft.photos.exe is a application which is most likely legit. So, if microsoft.photos.exe is on your computer, it is most likely ok, and will NOT be a cause for concern. Even if your system is clean, we still advise you to run a good antivirus with a good detection rate, in order to yourself your PC against viruses and malware.
Normally, this program is found in C:\Program Files\WindowsApps\Microsoft.Windows.Photos_16.302.8200.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe.
The MD5 checksum for this executable is 3b7b34f2a94ccd25ca675c409b962399.
This program is NOT a Windows service. This is good.
This application uses the Internet to communicate. In this day and age this is expected from a program. For example, most of the programs on your PC check for updates. For this, Internet communications are necessary.
This is a 64-bit executable. It uses the full capacity of nowadays' CPUs.
The description extracted from the file is Microsoft Photos.
File version stored as a property 16.302.8200.0.
Intellectual property rights notice Copyright Microsoft Corporation.
microsoft.photos.exe appears to have visible windows. This means it doesn't operate in some kind of invisible mode. Its activity is clearly displayed to you.
A digital certificate is missing from this program. The authors did not sign it. This is probably bad.
This application does NOT have a removal routine stored in registry.