This Snipping Tool or SnippingTool.exe is located in the System32 folder, but it (shortcut) can also be accessed via the following location: C:\ProgramData\Microsoft\Windows\Start Menu\Programs ...
In case, you are using another screen capture tool that uses the same button ... How do I take a screenshot in Windows for free? There are multiple ways to take screenshot in Windows for free.
You should use the Win+PrtScrn shortcut to capture the entire screen and the Alt+PrtScrn key combination to take screenshots ...