Update to v. 5418 causing problems

Hello,
after update to v. 5418, you might have encountered a problem with any of the following symptoms:
- ekrn crashed
- system stopped responding
- administrators might have received threat notifications with a blank threat name field

The official ESET statement regarding the faulty updates can be found here.

SOLUTION FOR USERS:
Update to v. 5419 and restart the computer. Ekrn.exe will start and function properly then.

SOLUTION FOR PRODUCTION OR SERVER SYSTEMS where a system restart is not possible:
Use the ESET Update Fix tool per the instructions described in this KB article.