The document provides over nine methods to resolve the ntoskrnl.exe blue screen of death (BSOD) error in Windows 11, explaining that this issue is related to problems with the Windows OS kernel executable file. It includes troubleshooting steps such as checking memory integrity, verifying file corruption, ensuring disk health, scanning for malware, updating drivers, and installing/uninstalling updates. Additionally, it suggests data backup solutions to protect user data in case of system failures due to the BSOD problem.