How can I temporarily disable the security update causing error 0x00011b (not recommended for long-term use)?

While *not recommended* as a permanent solution due to security risks, you can temporarily uninstall the offending update. Identify the problematic update (often KB5005565 or similar) in 'Programs and Features' -> 'View installed updates'. Uninstall it and reboot. This is a temporary workaround, and you should implement a proper fix as soon as possible.