Troubleshooting Operating Systems Part 1 In today's lesson we examine several issues that occur with the operating system and how we can resolve them. We begin by revisiting BSOD, the blue screen of death, and move on to boot failures what may happen to cause an improper shut down and the impact of DLLs and OS service failures. We'll discuss bad sectors on a hard disk drive, malware overloading system resources and memory errors. We'll also talk about when the BIOS would need to be configured and how to update it, when a disk sector becomes corrupt, and various causes that ca trigger the OS to shut down incorrectly. We also cover DLLs and what they are, how they work and how to trace a system or other event if they become corrupt or are considered "missing" on system boot up.