I had a problem where the snipping tool would open, let me take the snip, but then no longer showed me the pop-up allowing me to highlight / edit / crop it.
I fixed it as follows:
- Start > All Apps > Scroll down to snipping tool
- right-click on snipping tool > More > App Settings
- click on "set Default apps"
- scroll down to Snipping Tool and click on it
- scroll down to the section that says "MS-SCREENSKETCH" and click on it
- select the option that says snipping tool and that has the snipping tool icon
- click "Set Default"
- close window
- restart snipping tool
Now whenever I take a snip the window to edit, highlight, crop is available by clicking the snip icon on the task bar.