A customer reported that a home PC with Windows 10 installed in the default configuration is having issues loading applications after a reboot occurred in the middle of the night. Which of the following is the FIRST step in troubleshooting?


A. Install alternate open-source software in place of the applications with issues.
B. Run both CPU and memory tests to ensure that all hardware functionality is normal.
C. Check for any installed patches and roll them back one at a time until the issue is resolved.
D. Reformat the hard drive, and then reinstall the newest Windows 10 release and all applications.