Hi Corey Domer,
Regarding the information that you have issue with "optimize disc" option stating need to FIX ( C ) Drive, you may have data corruption or your drive has hardware issue.
Please scan and repair your system by running these commands with Command Prompt (Run as administrator):
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow
After done so, please reboot your system and check if the problem with Windows Security Updates can also being resolved.
If you have further information, please feel free to let me know.