To resolve a BSOD issue on a Windows 10 PC after installing optional Windows updates, the best approach is to Roll back the device drivers (B). BSODs can often be caused by incompatible or faulty drivers introduced during an update. Rolling back the drivers to a previous version can restore system stability and resolve the BSOD issue.

Restarting services can resolve issues with web applications without requiring a full server reboot, which aligns with the company policy.
* Restart services: Likely to resolve issues with the web application by refreshing the necessary services.
* Roll back Windows updates: Unnecessary if the issue is with the application services.
* Perform a Windows repair: More disruptive and not typically needed for application service issues.
* Add RAM to the server: Would require a reboot and is not immediately necessary for troubleshooting application issues.
Reference: CompTIA A+ Exam Objectives [220-1102] - 3.1: Given a scenario, troubleshoot common Windows OS problems.

The command cac cor.ptia. txt was issued on a Linux terminal. This command would display the contents of the text comptia.txt.

When troubleshooting a Windows system that is experiencing issues during the OS loading phase at startup, enabling boot logging is a practical step. Boot logging creates a record of all drivers and services that are loaded (or attempted to be loaded) during the startup process. This record, typically named ntbtlog.txt, can be reviewed to identify any drivers or services that failed to load, which could be contributing to the startup issues. This diagnostic step helps pinpoint the problematic component(s) and facilitates targeted troubleshooting to resolve the OS loading issues.

After implementing a change authorized by the change advisory board (CAB), the technician should document the date and time of change as part of the post-implementation review. This helps to track the change history, verify the success of the change, and identify any issues or incidents caused by the change1. Documenting the purpose of the change, the risk level, and the findings of the sandbox test are all part of the pre-implementation activities that should be done before submitting the change request to the CAB2.
References: 2: https://www.manageengine.com/products/service-desk/itil-change-management/cab-change- advisory-board.html 1: https://www.servicenow.com/content/dam/servicenow-assets/public/en-us/doc-type
/success/quick-answer/change-advisory-board-setup.pdf