Unsigned Windows Driver may hurt your system, yeah! Because it did not come from your vendor so warranty is out.
Windows sigverif (File Signature Verification) is a tool to verify/maintain the integrity of the system, critical files have been digitally signed so that any changes to these files can be quickly detected.
In simple words it will check what files are unsigned and report it to you for your action.
How to use it:
1. Go to Start >> Run type in sigverif hit enter. Sigverif windows will open.
2. Click “Start” to start scanning.
3. Unsigned files will be reported back to you. Mine are windows drivers.
Go ahead and verify your files.