Though the Snipping Tool is light weight and simple, you may think it too simple to meet your need. You may try to find if there is any software on your computer conflicting with Snipping Tool.
If the Snipping Tool doesn't work properly, for example, Snipping Tool shortcut, eraser, or pen not working, you may kill the Snipping Tool and restart it.
If you are not familiar with it, think twice and ask an expert for help. Warning: Some websites may advice you to change the data in the Registry Editor, but it have to be emphasized that it can be dangerous to change the data of Registry. If the tool launched successfully, make a shortcut to verify it.
Type 'snippingtool.exe' to check whether the tool is fixed, press 'Enter'.Type 'sfc /scannow' in the command line, press 'Enter'.Press Windows logo+'R' on the keyboard together, type 'cmd', then tap 'Enter'.The first thing you can try is to fix Snipping Tool with 'sfc /scannow' command.
